Lista de obras - Andrew Copas - Dominio Público Uruguay

A Quantitative Process for Enhancing End of Phase 2 Decisions

artículo científico

A case control study of HIV seroconversion in gay men, 1988-1993: what are the current risk factors?

article

A cognitive behavioural intervention to reduce sexually transmitted infections among gay men: randomised trial

artículo científico publicado en 2001

A comparison of multiple-imputation methods for handling missing data in repeated measurements observational studies

article by Oya Kalaycioglu et al published 15 October 2015 in Journal of the Royal Statistical Society

A critical review of methods for the assessment of patient-level interactions in individual participant data meta-analysis of randomized trials, and guidance for practitioners.

artículo científico publicado en 2011

A declining CD4 count and diagnosis of HIV-associated Hodgkin lymphoma: do prior clinical symptoms and laboratory abnormalities aid diagnosis?

artículo científico publicado en 2014

A feasibility study evaluating the uptake, effectiveness and acceptability of routine screening of pregnant migrants for latent tuberculosis infection in antenatal care: a research protocol

artículo científico publicado en 2022

A prognostic scoring tool for identification of patients at high and low risk of death from HIV-associated Pneumocystis jirovecii pneumonia

article

A randomised controlled trial of computer-assisted interviewing in sexual health clinics

article

A review of methodology for sample size calculations in cluster randomised trials

artículo científico publicado en 2011

A school-based randomized controlled trial of peer-led sex education in England

artículo científico publicado en 2003

A study comparing sexually transmitted infections and HIV among ex-red-light district and non-red-light district sex workers after the demolition of Baina red-light district

artículo científico publicado en 2009

A synthesis of convenience survey and other data to estimate undiagnosed HIV infection among men who have sex with men in England and Wales

artículo científico publicado en 2011

A systematic review of the screening accuracy of the HIV Dementia Scale and International HIV Dementia Scale

artículo científico publicado en 2013

Acute kidney injury among HIV-infected patients admitted to the intensive care unit

artículo científico publicado en 2014

Advancing Migrant Access to Health Services in Europe (AMASE): Protocol for a Cross-sectional Study

artículo científico publicado en 2016

Africans in London continue to present with advanced HIV disease in the era of highly active antiretroviral therapy

article

An evaluation of partner notification for HIV infection in genitourinary medicine clinics in England

artículo científico publicado en 1998

An evaluation of whether propensity score adjustment can remove the self-selection bias inherent to web panel surveys addressing sensitive health behaviours

artículo científico publicado en 2020

An evidence based approach to testing for antibody to herpes simplex virus type 2

artículo científico publicado en 2002

An interactive website for informed contraception choice: randomised evaluation of Contraception Choices

scientific article published on 01 January 2020

An interactive website to aid young women's choice of contraception: feasibility and efficacy RCT

artículo científico publicado en 2020

Analysis and reporting of stepped wedge randomised controlled trials: synthesis and critical appraisal of published studies, 2010 to 2014

artículo científico publicado en 2015

Asking about Sex in General Health Surveys: Comparing the Methods and Findings of the 2010 Health Survey for England with Those of the Third National Survey of Sexual Attitudes and Lifestyles

artículo científico publicado en 2015

Assessing End of Phase 2 Decision Criteria

Assessing participation bias in a sexual behaviour survey: implications for measuring HIV risk

artículo científico publicado en 1997

Associations between health and sexual lifestyles in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).

artículo científico publicado en 2013

Associations between source of information about sex and sexual health outcomes in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3)

artículo científico publicado en 2015

Author's Response * Female sex worker typology: too complicated to be used pragmatically

Avascular necrosis in HIV patients: a case-control study

artículo científico publicado en 2013

Can we improve partner notification rates through expedited partner therapy in the UK? Findings from an exploratory trial of Accelerated Partner Therapy (APT).

artículo científico publicado en 2011

Change over time (2007-2009) in HIV preventive behaviours, evidence from two serial population-based surveys in rural Zimbabwe

artículo científico publicado en 2012

Changes in conceptions in women younger than 18 years and the circumstances of young mothers in England in 2000-12: an observational study

artículo científico publicado en 2016

Changes in sexual attitudes and lifestyles in Britain through the life course and over time: findings from the National Surveys of Sexual Attitudes and Lifestyles (Natsal)

artículo científico publicado en 2013

Changes in the circumstances of young mothers in Britain: 1990 to 2000.

artículo científico publicado en 2005

Changes in the provision of post-exposure prophylaxis for HIV after sexual exposure following introduction of guidelines and publicity campaigns

artículo científico publicado en 2008

Chlamydia trachomatis and Neisseria gonorrhoeae infection and the sexual behaviour of men who have sex with men.

artículo científico publicado en 2006

Chlamydia trachomatis testing in the second British national survey of sexual attitudes and lifestyles: respondent uptake and treatment outcomes.

artículo científico publicado en 2005

Climate and genotypes of Pneumocystis jirovecii

artículo científico publicado en 2007

Cluster randomised trials with different numbers of measurements at baseline and endline: Sample size and optimal allocation

artículo científico publicado en 2019

Cohort Profile: The Flu Watch Study.

artículo científico publicado en 2017

Collecting and exploiting data to understand a nation’s sexual health needs: Implications for the British National Surveys of Sexual Attitudes and Lifestyles (Natsal)

article

Combined models for pre- and post-treatment longitudinal biomarker data: an application to CD4 counts in HIV-patients

artículo científico publicado en 2016

Combining multiple imputation and inverse-probability weighting

artículo científico publicado en 2011

Comparative community burden and severity of seasonal and pandemic influenza: results of the Flu Watch cohort study.

artículo científico publicado en 2014

Comparison of teenagers' early same-sex and heterosexual behavior: UK data from the SHARE and RIPPLE studies

artículo científico publicado en 2010

Comparison of two methods of screening for genital chlamydial infection in women attending in general practice: cross sectional survey

artículo científico publicado en 1997

Condoms and seat belts: the parallels and the lessons

scientific article published in The Lancet

Consistency in reporting sensitive sexual behaviours in Britain: change in reporting bias in the second and third National Surveys of Sexual Attitudes and Lifestyles (Natsal-2 and Natsal-3).

artículo científico publicado en 2013

Contraceptive practices, sexual and reproductive health needs of HIV-positive and negative female sex workers in Goa, India.

artículo científico publicado en 2010

Cytomegalovirus viral load testing of blood using quantitative polymerase chain reaction in acutely unwell HIV-1-positive patients lacks diagnostic utility

article

Defining linkage to care following human immunodeficiency virus (HIV) diagnosis for public health monitoring in Europe

article

Designing a stepped wedge trial: three main designs, carry-over effects and randomisation approaches

artículo científico publicado en 2015

Detection of Kaposi sarcoma associated herpesvirus in peripheral blood of HIV-infected individuals and progression to Kaposi's sarcoma

artículo científico publicado en 1995

Determinants of HIV drug resistance mutations in plasma virus after treatment interruption

artículo científico publicado en 2005

Determinants of long-acting reversible contraceptive (LARC) use by adolescent girls and young women

article published in 2012

Developing and testing accelerated partner therapy for partner notification for people with genital Chlamydia trachomatis diagnosed in primary care: a pilot randomised controlled trial

artículo científico publicado en 2015

Devising a female sex work typology using data from Karnataka, India

artículo científico publicado en 2009

Discordant responses on starting highly active antiretroviral therapy: suboptimal CD4 increases despite early viral suppression in the UK Collaborative HIV Cohort (UK CHIC) Study

artículo científico publicado en 2009

Does the UK government's teenage pregnancy strategy deal with the correct risk factors? Findings from a secondary analysis of data from a randomised trial of sex education and their implications for policy

artículo científico publicado en 2007

Doubly robust generalized estimating equations for longitudinal data

artículo científico publicado en 2009

Drug-resistant HIV-1 in the semen of men receiving antiretroviral therapy with acute sexually transmitted infections.

artículo científico publicado en 2003

Early predictors of mortality from Pneumocystis jirovecii pneumonia in HIV-infected patients: 1985-2006.

artículo científico publicado en 2008

Effect of HIV infection and antiretroviral therapy on hepatitis B virus (HBV)-specific T cell responses in patients who have resolved HBV infection

artículo científico publicado en 2005

Effect of computer-assisted self-interviews on reporting of sexual HIV risk behaviours in a general population sample: a methodological experiment.

artículo científico publicado en 2001

Effect of social exclusion on the risk of teenage pregnancy: development of hypotheses using baseline data from a randomised trial of sex education

artículo científico publicado en 2003

Enhancing psychosocial support for HIV positive adolescents in Harare, Zimbabwe

artículo científico publicado en 2013

Epidemiology of Mycoplasma genitalium in British men and women aged 16–44 years: evidence from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3)

artículo científico publicado en 2015

Estimating adult HIV prevalence in the UK in 2003: the direct method of estimation.

artículo científico publicado en 2006

Estimating the Prevalence of Sexual Function Problems: The Impact of Morbidity Criteria

artículo científico publicado en 2015

Ethnic variations in sexual activity and contraceptive use: national cross-sectional survey

artículo científico publicado en 2006

Ethnic variations in sexual behaviour in Great Britain and risk of sexually transmitted infections: a probability survey

artículo científico publicado en 2005

Evaluation of PIMA point-of-care CD4 testing in a large UK HIV service

artículo científico publicado en 2012

Evaluation of a home-delivery service for HIV-infected patients attending an inner London HIV treatment centre

artículo científico publicado en 2008

Evaluation of respondent-driven sampling.

artículo científico publicado en 2012

Evaluation of the role of location and distance in recruitment in respondent-driven sampling.

artículo científico publicado en 2011

Examining the potential public health benefit of offering STI testing to men in amateur football clubs: evidence from cross-sectional surveys

artículo científico publicado en 2015

Exploring the costs and outcomes of sexually transmitted infection (STI) screening interventions targeting men in football club settings: preliminary cost-consequence analysis of the SPORTSMART pilot randomised controlled trial.

artículo científico publicado en 2014

Factors Associated With Access to HIV Testing and Primary Care Among Migrants Living in Europe: Cross-Sectional Survey.

artículo científico publicado en 2017

Factors Associated with HIV Prevalence and HIV Testing in Sierra Leone: Findings from the 2008 Demographic Health Survey

artículo científico publicado en 2015

Factors associated with gonorrhoea in men aware of being positive for HIV infection: case-control study

artículo científico publicado en 1998

Factors associated with heterosexual transmission of HIV to individuals without a major risk within England, Wales, and Northern Ireland: a comparison with national probability surveys.

artículo científico publicado en 2006

First sexual partnerships--age differences and their significance: empirical evidence from the 2000 British National Survey of Sexual Attitudes and Lifestyles ('Natsal 2000').

artículo científico publicado en 2006

Five questions to consider before conducting a stepped wedge trial

artículo científico publicado en 2015

Fractional Brownian motion and multivariate-t models for longitudinal biomedical data, with application to CD4 counts in HIV-positive patients

artículo científico publicado en 2015

Genotypic variation in Pneumocystis jirovecii isolates in Britain

artículo científico publicado en 2005

HIV Incidence Estimates Using the Limiting Antigen Avidity EIA Assay at Testing Sites in Kiev City, Ukraine: 2013-2014.

artículo científico publicado en 2016

HIV Testing and Diagnosis Rates in Kiev, Ukraine: April 2013-March 2014

artículo científico publicado en 2015

HIV and STI prevalence and determinants among male migrant workers in India

artículo científico publicado en 2012

HIV partner notification policy and practice within GUM clinics in England: where are we now?

artículo científico publicado en 1997

HIV testing and high risk sexual behaviour among London's migrant African communities: a participatory research study

artículo científico publicado en 2002

HIV transmission risk among sub-Saharan Africans in London travelling to their countries of origin

artículo científico publicado en 2001

Hepatitis C in men who have sex with men in London--a community survey

artículo científico publicado en 2013

High percentage of recent HIV infection leading to onward transmission in Odessa, Ukraine associated with young adults

artículo científico publicado en 2014

High-Risk Human Papillomavirus (HPV) Infection and Cervical Cancer Prevention in Britain: Evidence of Differential Uptake of Interventions from a Probability Survey

artículo científico publicado en 2015

How do UK medical graduates rate their knowledge and skills in sexual health and HIV medicine? A national survey

artículo científico publicado en 2009

How do women prepare for pregnancy? Preconception experiences of women attending antenatal services and views of health professionals.

artículo científico publicado en 2014

How important is randomisation in a stepped wedge trial?

artículo científico publicado en 2015

How successful was the English teenage pregnancy strategy? - Authors' reply

artículo científico publicado en 2016

Immunosuppression among HIV-1-positive patients attending for care: experience from two large HIV centres in the United Kingdom

article

Improved survival for HIV infected patients with severe Pneumocystis jirovecii pneumonia is independent of highly active antiretroviral therapy

artículo científico publicado en 2006

Inadequate reporting of sample size calculations in cluster randomised trials: a review

artículo científico publicado en 2013

Incentives for voluntary HIV testing in NHS staff

artículo científico publicado en 2006

Increasing prevalence of male homosexual partnerships and practices in Britain 1990-2000: evidence from national probability surveys

artículo científico publicado en 2004

Individual patient data meta-analysis of time-to-event outcomes: one-stage versus two-stage approaches for estimating the hazard ratio under a random effects model.

artículo científico publicado en 2011

Influence of family type and parenting behaviours on teenage sexual behaviour and conceptions

artículo científico publicado en 2006

Investigating the relationship between HIV testing and risk behaviour in Britain: National Survey of Sexual Attitudes and Lifestyles 2000.

artículo científico publicado en 2005

Is "Sexual Competence" at First Heterosexual Intercourse Associated With Subsequent Sexual Health Status?

artículo científico publicado en 2016

Is chlamydia screening and testing in Britain reaching young adults at risk of infection? Findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3)

artículo científico publicado en 2016

Is ritonavir boosting associated with gout?

artículo científico publicado en 2005

Is use of antiretroviral therapy among homosexual men associated with increased risk of transmission of HIV infection?

artículo científico publicado en 2003

Is vaginal microscopy an essential tool for the management of women presenting with vaginal discharge?

article

Learning about sex: results from Natsal 2000.

artículo científico publicado en 2006

Lifetime prevalence, associated factors, and circumstances of non-volitional sex in women and men in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).

artículo científico publicado en 2013

Linkage to HIV care following diagnosis in the WHO European Region: A systematic review and meta-analysis, 2006-2017. ⬇️

artículo científico publicado en 2018

London Measure of Unplanned Pregnancy: guidance for its use as an outcome measure

artículo científico publicado en 2017

Maternal infection and risk of intrapartum death: a population based observational study in South Asia

artículo científico publicado en 2013

Medicated sex in Britain: evidence from the third National Survey of Sexual Attitudes and Lifestyles

artículo científico publicado en 2016

Men who have sex with men in Great Britain: comparing methods and estimates from probability and convenience sample surveys

scientific article published on 10 March 2016

Methodology of the third British National Survey of Sexual Attitudes and Lifestyles (Natsal-3)

artículo científico publicado en 2013

Methods for observed-cluster inference when cluster size is informative: a review and clarifications

artículo científico publicado en 2014

Methods for sample size determination in cluster randomized trials

artículo científico publicado en 2015

Monocyte derived dendritic cells from HIV-1 infected individuals partially reconstitute CD4 T-cell responses

article

Mortality and causes of death in people diagnosed with HIV in the era of highly active antiretroviral therapy compared with the general population: an analysis of a national observational cohort.

artículo científico publicado en 2016

Natural T Cell-mediated Protection against Seasonal and Pandemic Influenza. Results of the Flu Watch Cohort Study

artículo científico publicado en 2015

Nonprobability Web surveys to measure sexual behaviors and attitudes in the general population: a comparison with a probability sample interview survey

artículo científico publicado en 2014

Optimal CD4 count for initiating HIV treatment: impact of CD4 observation frequency and grace periods, and performance of dynamic marginal structural models

artículo científico publicado en 2014

Optimizing information technology to improve sexual health-care delivery: public and patient preferences

artículo científico publicado en 2007

Oral Human Papillomavirus Infection in Men Who Have Sex with Men: A Systematic Review and Meta-Analysis

artículo científico publicado en 2016

Outcomes from treating tuberculosis with rifampicin or rifabutin in HIV-infected persons also receiving antiretroviral therapy

artículo científico publicado en 2015

Overcoming subjectivity in assessing facial lipoatrophy: is there a role for three-dimensional laser scans?

artículo científico publicado en 2003

Participatory women's groups and counselling through home visits to improve child growth in rural eastern India: protocol for a cluster randomised controlled trial

artículo científico publicado en 2015

Patterns of sexual mixing with respect to social, health and sexual characteristics among heterosexual couples in England: analyses of probability sample survey data

artículo científico publicado en 2014

Performance evaluation of automated urine microscopy as a rapid, non-invasive approach for the diagnosis of non-gonococcal urethritis

artículo científico publicado en 2015

Poor sensitivity and consistency of microscopy in the diagnosis of low grade non-gonococcal urethritis.

artículo científico publicado en 2003

Population-level impact of Zimbabwe's National Behavioural Change Programme

artículo científico publicado en 2014

Positive attitudes to pediatric HIV testing: findings from a nationally representative survey from Zimbabwe

artículo científico publicado en 2012

Predicting STI Diagnoses Amongst MSM and Young People Attending Sexual Health Clinics in England: Triage Algorithm Development and Validation Using Routine Clinical Data

artículo científico publicado en 2018

Predictors of maternal psychological distress in rural India: a cross-sectional community-based study

artículo científico publicado en 2012

Preferred options for receiving sexual health screening results: a population and patient survey

artículo científico publicado en 2008

Pregnancy Intention and Pregnancy Outcome: Systematic Review and Meta-Analysis

artículo científico publicado en 2017

Prevalence and Determinants of Unintended Pregnancy in Mchinji District, Malawi; Using a Conceptual Hierarchy to Inform Analysis

artículo científico publicado en 2016

Prevalence, risk factors, and uptake of interventions for sexually transmitted infections in Britain: findings from the National Surveys of Sexual Attitudes and Lifestyles (Natsal)

artículo científico publicado en 2013

Prognostic value of C-reactive protein in HIV-infected patients with Pneumocystis jirovecii pneumonia.

artículo científico publicado en 2010

Protocol for the economic evaluation of a community-based intervention to improve growth among children under two in rural India (CARING trial).

artículo científico publicado en 2016

Protocol of the Low Birth Weight South Asia Trial (LBWSAT), a cluster-randomised controlled trial testing impact on birth weight and infant nutrition of Participatory Learning and Action through women's groups, with and without unconditional [...]

artículo científico publicado en 2016

Psychological factors associated with recurrent vaginal candidiasis: a preliminary study

artículo científico publicado en 1998

Public involvement in modernising genitourinary medicine clinics: using general public and patient opinion to influence models of service delivery

artículo científico publicado en 2006

Pupil-led sex education in England (RIPPLE study): cluster-randomised intervention trial

artículo científico publicado en 2004

Quantifying, displaying and accounting for heterogeneity in the meta-analysis of RCTs using standard and generalised Q statistics.

artículo científico publicado en 2011

Randomized trial of the effect of tailored versus standard use of the combined oral contraceptive pill on continuation rates at 1 year.

artículo científico publicado en 2013

Reassessing pregnancy intention and its relation to maternal, perinatal and neonatal outcomes in a low-income setting: A cohort study

artículo científico publicado en 2018

Recent heterosexual partnerships and patterns of condom use: a weighted analysis

artículo científico publicado en 2009

Recent pilot studies of chlamydia screening

artículo científico publicado en 2003

Refocusing health promotion for syphilis prevention: results of a case-control study of men who have sex with men on England's south coast.

artículo científico publicado en 2006

Reported sexually transmitted disease clinic attendance and sexually transmitted infections in britain: prevalence, risk factors, and proportionate population burden

artículo científico publicado en 2005

Reporting and methodological quality of sample size calculations in cluster randomized trials could be improved: a review

artículo científico publicado en 2014

Reporting of stepped wedge cluster randomised trials: extension of the CONSORT 2010 statement with explanation and elaboration

artículo científico publicado en 2018

Respondent driven sampling: determinants of recruitment and a method to improve point estimation

artículo científico publicado en 2013

Review of methods for handling confounding by cluster and informative cluster size in clustered data

artículo científico publicado en 2014

Risk factors for fatality in HIV-infected patients with dideoxynucleoside-induced severe hyperlactataemia or lactic acidosis

artículo científico publicado en 2011

Salivary Testosterone Levels and Health Status in Men and Women in the British General Population: Findings from the Third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).

scientific article published on 23 August 2016

Sample size calculation for a stepped wedge trial

artículo científico publicado en 2015

Seasonal variation in mortality of Pneumocystis jirovecii pneumonia in HIV-infected patients

article

Selective versus universal antenatal HIV testing: epidemiological and implementational factors in policy choice

artículo científico publicado en 1999

Sex partner acquisition while overseas: results from a British national probability survey

artículo científico publicado en 2007

Sexual behaviour in Britain: early heterosexual experience

artículo científico publicado en 2001

Sexual behaviour in Britain: partnerships, practices, and HIV risk behaviours

scientific article published in The Lancet

Sexual behaviours, HIV testing, and the proportion of men at risk of transmitting and acquiring HIV in London, UK, 2000-13: a serial cross-sectional study

artículo científico publicado en 2016

Sexual function in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).

artículo científico publicado en 2013

Sexual mixing in opposite-sex partnerships in Britain and its implications for STI risk: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3)

scientific article published on 01 February 2019

Sexual risk reduction interventions for patients attending sexual health clinics: a mixed-methods feasibility study

article

Short- and long-term effects of highly active antiretroviral therapy on Kaposi sarcoma-associated herpesvirus immune responses and viraemia

artículo científico publicado en 2004

Should Tyrosine Kinase Inhibitors Be Considered for Advanced Non-Small-Cell Lung Cancer Patients With Wild Type EGFR? Two Systematic Reviews and Meta-Analyses of Randomized Trials

artículo científico publicado en 2015

Stepped wedge randomised controlled trials: systematic review of studies published between 2010 and 2014

artículo científico publicado en 2015

Stopping and switching contraceptive methods: findings from Contessa, a prospective longitudinal study of women of reproductive age in England

artículo científico publicado en 2014

Suicidal behavior among female sex workers in Goa, India: the silent epidemic.

artículo científico publicado en 2009

Superiority and non-inferiority: two sides of the same coin?

Survival of HIV-infected patients admitted to the intensive care unit in the era of highly active antiretroviral therapy

article

Survival of HIV-infected patients in the intensive care unit in the era of highly active antiretroviral therapy.

artículo científico publicado en 2007

Systematic review and meta-analysis of L1-VLP-based human papillomavirus vaccine efficacy against anogenital pre-cancer in women with evidence of prior HPV exposure

artículo científico publicado en 2014

Tenofovir-associated renal and bone toxicity

scientific article published on 06 May 2009

Tenofovir-linked hyperparathyroidism is independently associated with the presence of vitamin D deficiency.

artículo científico publicado en 2010

The "3 in 1" Study: Pooling Self-Taken Pharyngeal, Urethral, and Rectal Samples into a Single Sample for Analysis for Detection of Neisseria gonorrhoeae and Chlamydia trachomatis in Men Who Have Sex with Men.

artículo científico publicado en 2015

The Ballseye programme: a mixed-methods programme of research in traditional sexual health and alternative community settings to improve the sexual health of men in the UK ⬇️

artículo científico publicado en 2016

The SPORTSMART study: a pilot randomised controlled trial of sexually transmitted infection screening interventions targeting men in football club settings.

artículo científico publicado en 2014

The Sexunzipped trial: optimizing the design of online randomized controlled trials

artículo científico publicado en 2013

The acceptability of urinary LCR testing for Chlamydia trachomatis among participants in a probability sample survey of sexual attitudes and lifestyles

artículo científico publicado en 2001

The accuracy of reported sensitive sexual behaviour in Britain: exploring the extent of change 1990-2000.

artículo científico publicado en 2002

The burden and determinants of HIV and sexually transmitted infections in a population-based sample of female sex workers in Goa, India

artículo científico publicado en 2008

The clinical manifestations of anorectal infection with lymphogranuloma venereum (LGV) versus non-LGV strains of Chlamydia trachomatis: a case-control study in homosexual men.

artículo científico publicado en 2007

The effect of HIV infection on time off work in a large cohort of gold miners with known dates of seroconversion

artículo científico publicado en 2010

The effect of dislike of school on risk of teenage pregnancy: testing of hypotheses using longitudinal data from a randomised trial of sex education

artículo científico publicado en 2005

The effect of participatory women's groups on infant feeding and child health knowledge, behaviour and outcomes in rural Bangladesh: a controlled before-and-after study

artículo científico publicado en 2014

The effects of antiretroviral therapy on HIV-1 RNA loads in seminal plasma in HIV-positive patients with and without urethritis

article

The impact of pump-priming funding on genitourinary medicine and modernization of services

artículo científico publicado en 2004

The long-term effects of a peer-led sex education programme (RIPPLE): a cluster randomised trial in schools in England

artículo científico publicado en 2008

The prevalence of unplanned pregnancy and associated factors in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).

artículo científico publicado en 2013

The relative clinical effectiveness and cost-effectiveness of three contrasting approaches to partner notification for curable sexually transmitted infections: a cluster randomised trial in primary care

artículo científico publicado en 2015

The use of chaperones for intimate examinations: the patient perspective based on an anonymous questionnaire

artículo científico publicado en 2007

The utility of screening for parasitic infections in HIV-1-infected Africans with eosinophilia in London

artículo científico publicado en 2007

Trends in attendances to genitourinary medicine services by older women

artículo científico publicado en 2012

Understanding pregnancy planning in a low-income country setting: validation of the London measure of unplanned pregnancy in Malawi.

artículo científico publicado en 2013

Uptake of the HPV vaccination programme in England: a cross-sectional survey of young women attending sexual health services

artículo científico publicado en 2014

Using Observational Data to Estimate the Effect of Hand Washing and Clean Delivery Kit Use by Birth Attendants on Maternal Deaths after Home Deliveries in Rural Bangladesh, India and Nepal

artículo científico publicado en 2015

Using the Web to Collect Data on Sensitive Behaviours: A Study Looking at Mode Effects on the British National Survey of Sexual Attitudes and Lifestyles

artículo científico publicado en 2016

Virological efficacy of PI monotherapy for HIV-1 in clinical practice

artículo científico publicado en 2016

Voluntary universal antenatal HIV testing

artículo científico publicado en 1996

What is the risk of mortality following diagnosis of multidrug-resistant HIV-1?

artículo científico

Where do we diagnose HIV infection? Monitoring new diagnoses made in nontraditional settings in England, Wales and Northern Ireland.

artículo científico publicado en 2018

Who has sex with whom? Characteristics of heterosexual partnerships reported in a national probability survey and implications for STI risk

artículo científico publicado en 2008

Who pays for sex? An analysis of the increasing prevalence of female commercial sex contacts among men in Britain

artículo científico publicado en 2005

Who reports sexual function problems? Empirical evidence from Britain's 2000 National Survey of Sexual Attitudes and Lifestyles.

artículo científico publicado en 2005

Who uses condoms with whom? Evidence from national probability sample surveys.

artículo científico publicado en 2006

Who would use PrEP? Factors associated with intention to use among MSM in London: a community survey

artículo científico publicado en 2012

Why Do Men Report More Opposite-Sex Sexual Partners Than Women? Analysis of the Gender Discrepancy in a British National Probability Survey

artículo científico publicado en 2018

Women who report having sex with women: British national probability data on prevalence, sexual behaviors, and health outcomes.

artículo científico publicado en 2007

Women's groups practising participatory learning and action to improve maternal and newborn health in low-resource settings: a systematic review and meta-analysis

artículo científico publicado en 2013

Lista de obras de Andrew Copas

A Quantitative Process for Enhancing End of Phase 2 Decisions

A case control study of HIV seroconversion in gay men, 1988-1993: what are the current risk factors?

A cognitive behavioural intervention to reduce sexually transmitted infections among gay men: randomised trial

A comparison of multiple-imputation methods for handling missing data in repeated measurements observational studies

A critical review of methods for the assessment of patient-level interactions in individual participant data meta-analysis of randomized trials, and guidance for practitioners.

A declining CD4 count and diagnosis of HIV-associated Hodgkin lymphoma: do prior clinical symptoms and laboratory abnormalities aid diagnosis?

A feasibility study evaluating the uptake, effectiveness and acceptability of routine screening of pregnant migrants for latent tuberculosis infection in antenatal care: a research protocol

A prognostic scoring tool for identification of patients at high and low risk of death from HIV-associated Pneumocystis jirovecii pneumonia

A randomised controlled trial of computer-assisted interviewing in sexual health clinics

A review of methodology for sample size calculations in cluster randomised trials

A school-based randomized controlled trial of peer-led sex education in England

A study comparing sexually transmitted infections and HIV among ex-red-light district and non-red-light district sex workers after the demolition of Baina red-light district

A synthesis of convenience survey and other data to estimate undiagnosed HIV infection among men who have sex with men in England and Wales

A systematic review of the screening accuracy of the HIV Dementia Scale and International HIV Dementia Scale

Acute kidney injury among HIV-infected patients admitted to the intensive care unit

Advancing Migrant Access to Health Services in Europe (AMASE): Protocol for a Cross-sectional Study

Africans in London continue to present with advanced HIV disease in the era of highly active antiretroviral therapy

An evaluation of partner notification for HIV infection in genitourinary medicine clinics in England

An evaluation of whether propensity score adjustment can remove the self-selection bias inherent to web panel surveys addressing sensitive health behaviours

An evidence based approach to testing for antibody to herpes simplex virus type 2

An interactive website for informed contraception choice: randomised evaluation of Contraception Choices

An interactive website to aid young women's choice of contraception: feasibility and efficacy RCT

Analysis and reporting of stepped wedge randomised controlled trials: synthesis and critical appraisal of published studies, 2010 to 2014

Asking about Sex in General Health Surveys: Comparing the Methods and Findings of the 2010 Health Survey for England with Those of the Third National Survey of Sexual Attitudes and Lifestyles

Assessing End of Phase 2 Decision Criteria

Assessing participation bias in a sexual behaviour survey: implications for measuring HIV risk

Associations between health and sexual lifestyles in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).

Associations between source of information about sex and sexual health outcomes in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3)

Author's Response * Female sex worker typology: too complicated to be used pragmatically

Avascular necrosis in HIV patients: a case-control study

Can we improve partner notification rates through expedited partner therapy in the UK? Findings from an exploratory trial of Accelerated Partner Therapy (APT).

Change over time (2007-2009) in HIV preventive behaviours, evidence from two serial population-based surveys in rural Zimbabwe

Changes in conceptions in women younger than 18 years and the circumstances of young mothers in England in 2000-12: an observational study

Changes in sexual attitudes and lifestyles in Britain through the life course and over time: findings from the National Surveys of Sexual Attitudes and Lifestyles (Natsal)

Changes in the circumstances of young mothers in Britain: 1990 to 2000.

Changes in the provision of post-exposure prophylaxis for HIV after sexual exposure following introduction of guidelines and publicity campaigns

Chlamydia trachomatis and Neisseria gonorrhoeae infection and the sexual behaviour of men who have sex with men.

Chlamydia trachomatis testing in the second British national survey of sexual attitudes and lifestyles: respondent uptake and treatment outcomes.

Climate and genotypes of Pneumocystis jirovecii

Cluster randomised trials with different numbers of measurements at baseline and endline: Sample size and optimal allocation

Cohort Profile: The Flu Watch Study.

Collecting and exploiting data to understand a nation’s sexual health needs: Implications for the British National Surveys of Sexual Attitudes and Lifestyles (Natsal)

Combined models for pre- and post-treatment longitudinal biomarker data: an application to CD4 counts in HIV-patients

Combining multiple imputation and inverse-probability weighting

Comparative community burden and severity of seasonal and pandemic influenza: results of the Flu Watch cohort study.

Comparison of teenagers' early same-sex and heterosexual behavior: UK data from the SHARE and RIPPLE studies

Comparison of two methods of screening for genital chlamydial infection in women attending in general practice: cross sectional survey

Condoms and seat belts: the parallels and the lessons

Consistency in reporting sensitive sexual behaviours in Britain: change in reporting bias in the second and third National Surveys of Sexual Attitudes and Lifestyles (Natsal-2 and Natsal-3).

Contraceptive practices, sexual and reproductive health needs of HIV-positive and negative female sex workers in Goa, India.

Cytomegalovirus viral load testing of blood using quantitative polymerase chain reaction in acutely unwell HIV-1-positive patients lacks diagnostic utility

Defining linkage to care following human immunodeficiency virus (HIV) diagnosis for public health monitoring in Europe

Designing a stepped wedge trial: three main designs, carry-over effects and randomisation approaches

Detection of Kaposi sarcoma associated herpesvirus in peripheral blood of HIV-infected individuals and progression to Kaposi's sarcoma

Determinants of HIV drug resistance mutations in plasma virus after treatment interruption

Determinants of long-acting reversible contraceptive (LARC) use by adolescent girls and young women

Developing and testing accelerated partner therapy for partner notification for people with genital Chlamydia trachomatis diagnosed in primary care: a pilot randomised controlled trial

Devising a female sex work typology using data from Karnataka, India

Discordant responses on starting highly active antiretroviral therapy: suboptimal CD4 increases despite early viral suppression in the UK Collaborative HIV Cohort (UK CHIC) Study

Does the UK government's teenage pregnancy strategy deal with the correct risk factors? Findings from a secondary analysis of data from a randomised trial of sex education and their implications for policy

Doubly robust generalized estimating equations for longitudinal data

Drug-resistant HIV-1 in the semen of men receiving antiretroviral therapy with acute sexually transmitted infections.

Early predictors of mortality from Pneumocystis jirovecii pneumonia in HIV-infected patients: 1985-2006.

Effect of HIV infection and antiretroviral therapy on hepatitis B virus (HBV)-specific T cell responses in patients who have resolved HBV infection

Effect of computer-assisted self-interviews on reporting of sexual HIV risk behaviours in a general population sample: a methodological experiment.

Effect of social exclusion on the risk of teenage pregnancy: development of hypotheses using baseline data from a randomised trial of sex education

Enhancing psychosocial support for HIV positive adolescents in Harare, Zimbabwe

Epidemiology of Mycoplasma genitalium in British men and women aged 16–44 years: evidence from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3)

Estimating adult HIV prevalence in the UK in 2003: the direct method of estimation.

Estimating the Prevalence of Sexual Function Problems: The Impact of Morbidity Criteria

Ethnic variations in sexual activity and contraceptive use: national cross-sectional survey

Ethnic variations in sexual behaviour in Great Britain and risk of sexually transmitted infections: a probability survey

Evaluation of PIMA point-of-care CD4 testing in a large UK HIV service

Evaluation of a home-delivery service for HIV-infected patients attending an inner London HIV treatment centre

Evaluation of respondent-driven sampling.

Evaluation of the role of location and distance in recruitment in respondent-driven sampling.

Examining the potential public health benefit of offering STI testing to men in amateur football clubs: evidence from cross-sectional surveys

Exploring the costs and outcomes of sexually transmitted infection (STI) screening interventions targeting men in football club settings: preliminary cost-consequence analysis of the SPORTSMART pilot randomised controlled trial.

Factors Associated With Access to HIV Testing and Primary Care Among Migrants Living in Europe: Cross-Sectional Survey.