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Items: 1 to 50 of 109

1.

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

Mercer CH, Clifton S, Prior G, Aldridge RW, Bonell C, Copas AJ, Field N, Gibbs J, Macdowall W, Mitchell KR, Tanton C, Thomson N, Unemo M, Sonnenberg P.

Sex Transm Infect. 2019 May;95(3):159-161. doi: 10.1136/sextrans-2018-053571. Epub 2019 Mar 19. No abstract available. Erratum in: Sex Transm Infect. 2019 May 28;:.

2.

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).

Geary RS, Copas AJ, Sonnenberg P, Tanton C, King E, Jones KG, Trifonova V, Johnson AM, Mercer CH.

Int J Epidemiol. 2019 Feb 1;48(1):228-242. doi: 10.1093/ije/dyy237.

3.
4.

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

Dunn DT, Copas AJ, Brocklehurst P.

Trials. 2018 Sep 17;19(1):499. doi: 10.1186/s13063-018-2885-z.

5.

HIV testing history and access to treatment among migrants living with HIV in Europe.

Fakoya I, Álvarez-Del Arco D, Monge S, Copas AJ, Gennotte AF, Volny-Anne A, Wengenroth C, Touloumi G, Prins M, Barros H, Darling KE, Prestileo T, Del Amo J, Burns FM; aMASE Study Team.

J Int AIDS Soc. 2018 Jul;21 Suppl 4:e25123. doi: 10.1002/jia2.25123.

6.

Distribution of Salivary Testosterone in Men and Women in a British General Population-Based Sample: The Third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).

Keevil BG, Clifton S, Tanton C, Macdowall W, Copas AJ, Lee D, Field N, Mitchell KR, Sonnenberg P, Bancroft J, Mercer CH, Johnson AM, Wellings K, Wu FCW.

J Endocr Soc. 2017 Jan 12;1(1):14-25. doi: 10.1210/js.2016-1029. eCollection 2017 Jan 1.

7.

Predictors of CD4 cell recovery following initiation of antiretroviral therapy among HIV-1 positive patients with well-estimated dates of seroconversion.

Stirrup OT, Copas AJ, Phillips AN, Gill MJ, Geskus RB, Touloumi G, Young J, Bucher HC, Babiker AG; CASCADE Collaboration in EuroCoord.

HIV Med. 2018 Mar;19(3):184-194. doi: 10.1111/hiv.12567. Epub 2017 Dec 1.

8.

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

Fakoya I, Álvarez-Del Arco D, Copas AJ, Teixeira B, Block K, Gennotte AF, Volny-Anne A, Bil JP, Touloumi G, Del Amo J, Burns FM.

JMIR Public Health Surveill. 2017 Nov 6;3(4):e84. doi: 10.2196/publichealth.7741.

9.

Ethnic variations in sexual behaviours and sexual health markers: findings from the third British National Survey of Sexual Attitudes and Lifestyles (Natsal-3).

Wayal S, Hughes G, Sonnenberg P, Mohammed H, Copas AJ, Gerressu M, Tanton C, Furegato M, Mercer CH.

Lancet Public Health. 2017 Oct 3;2(10):e458-e472. doi: 10.1016/S2468-2667(17)30159-7. eCollection 2017 Oct.

10.

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).

Clifton S, Macdowall W, Copas AJ, Tanton C, Keevil BG, Lee DM, Mitchell KR, Field N, Sonnenberg P, Bancroft J, Mercer CH, Wallace AM, Johnson AM, Wellings K, Wu FC.

J Clin Endocrinol Metab. 2016 Nov;101(11):3939-3951. Epub 2016 Aug 23.

11.

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

Stirrup OT, Babiker AG, Copas AJ.

BMC Med Res Methodol. 2016 Sep 15;16:121. doi: 10.1186/s12874-016-0187-2.

12.

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

El Bouzidi K, Collier D, Nastouli E, Copas AJ, Miller RF, Gupta RK.

J Antimicrob Chemother. 2016 Nov;71(11):3228-3234. Epub 2016 Jul 7.

13.

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

Fakoya I, Álvarez-Del Arco D, Monge S, Copas AJ, Gennotte AF, Volny-Anne A, Göpel S, Touloumi G, Prins M, Barros H, Staehelin C, Del Amo J, Burns FM.

JMIR Res Protoc. 2016 May 16;5(2):e74. doi: 10.2196/resprot.5085.

14.

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

Prah P, Hickson F, Bonell C, McDaid LM, Johnson AM, Wayal S, Clifton S, Sonnenberg P, Nardone A, Erens B, Copas AJ, Riddell J, Weatherburn P, Mercer CH.

Sex Transm Infect. 2016 Sep;92(6):455-63. doi: 10.1136/sextrans-2015-052389. Epub 2016 Mar 10.

15.

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

Palmer MJ, Clarke L, Ploubidis GB, Mercer CH, Gibson LJ, Johnson AM, Copas AJ, Wellings K.

J Sex Res. 2017 Jan;54(1):91-104. doi: 10.1080/00224499.2015.1134424. Epub 2016 Feb 18.

16.

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

Mitchell KR, Jones KG, Wellings K, Johnson AM, Graham CA, Datta J, Copas AJ, Bancroft J, Sonnenberg P, Macdowall W, Field N, Mercer CH.

J Sex Res. 2016 Oct;53(8):955-967. doi: 10.1080/00224499.2015.1089214. Epub 2015 Nov 25.

17.

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

Stirrup OT, Babiker AG, Carpenter JR, Copas AJ.

Stat Med. 2016 Apr 30;35(9):1514-32. doi: 10.1002/sim.6788. Epub 2015 Nov 10.

18.

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).

Sonnenberg P, Ison CA, Clifton S, Field N, Tanton C, Soldan K, Beddows S, Alexander S, Khanom R, Saunders P, Copas AJ, Wellings K, Mercer CH, Johnson AM.

Int J Epidemiol. 2015 Dec;44(6):1982-94. doi: 10.1093/ije/dyv194.

19.

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).

Woodhall SC, Soldan K, Sonnenberg P, Mercer CH, Clifton S, Saunders P, da Silva F, Alexander S, Wellings K, Tanton C, Field N, Copas AJ, Ison CA, Johnson AM.

Sex Transm Infect. 2016 May;92(3):218-27. doi: 10.1136/sextrans-2015-052013. Epub 2015 Aug 19.

20.

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

Copas AJ, Lewis JJ, Thompson JA, Davey C, Baio G, Hargreaves JR.

Trials. 2015 Aug 17;16:352. doi: 10.1186/s13063-015-0842-7.

21.

Five questions to consider before conducting a stepped wedge trial.

Hargreaves JR, Copas AJ, Beard E, Osrin D, Lewis JJ, Davey C, Thompson JA, Baio G, Fielding KL, Prost A.

Trials. 2015 Aug 17;16:350. doi: 10.1186/s13063-015-0841-8.

22.

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

Davey C, Hargreaves J, Thompson JA, Copas AJ, Beard E, Lewis JJ, Fielding KL.

Trials. 2015 Aug 17;16:358. doi: 10.1186/s13063-015-0838-3. Review.

23.

How important is randomisation in a stepped wedge trial?

Hargreaves JR, Prost A, Fielding KL, Copas AJ.

Trials. 2015 Aug 16;16:359. doi: 10.1186/s13063-015-0872-1.

24.

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.

Prah P, Johnson AM, Nardone A, Clifton S, Mindell JS, Copas AJ, Robinson C, Craig R, Woodhall SC, Macdowall W, Fuller E, Erens B, Sonnenberg P, Wellings K, Mercer CH.

PLoS One. 2015 Aug 7;10(8):e0135203. doi: 10.1371/journal.pone.0135203. eCollection 2015.

25.

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

Mercer CH, Fuller SS, Saunders JM, Muniina P, Copas AJ, Hart GJ, Sutcliffe LJ, Johnson AM, Cassell JA, Estcourt CS.

BMC Public Health. 2015 Jul 17;15:676. doi: 10.1186/s12889-015-1951-7.

26.

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

Mitchell KR, Prah P, Mercer CH, Datta J, Tanton C, Macdowall W, Copas AJ, Clifton S, Sonnenberg P, Field N, Johnson AM, Wellings K.

Sex Transm Infect. 2016 Feb;92(1):32-8. doi: 10.1136/sextrans-2015-052094. Epub 2015 Jun 19.

27.

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).

Macdowall W, Jones KG, Tanton C, Clifton S, Copas AJ, Mercer CH, Palmer MJ, Lewis R, Datta J, Mitchell KR, Field N, Sonnenberg P, Johnson AM, Wellings K.

BMJ Open. 2015 Mar 5;5(3):e007837. doi: 10.1136/bmjopen-2015-007837.

28.

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

Tanton C, Soldan K, Beddows S, Mercer CH, Waller J, Field N, Clifton S, Copas AJ, Panwar K, Manyenga P, da Silva F, Wellings K, Ison CA, Johnson AM, Sonnenberg P.

Cancer Epidemiol Biomarkers Prev. 2015 May;24(5):842-53. doi: 10.1158/1055-9965.EPI-14-1333. Epub 2015 Mar 3.

29.

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

Pond MJ, Nori AV, Patel S, Laing K, Ajayi M, Copas AJ, Butcher PD, Hay P, Sadiq ST.

Sex Transm Infect. 2015 May;91(3):165-70. doi: 10.1136/sextrans-2014-051761. Epub 2015 Jan 22.

30.

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

Rawson TM, Brima N, Almajid F, Pozniak AL, Janmohamed A, Mandalia S, Basnayake S, Kellgren L, Copas AJ, Miller RF.

J Acquir Immune Defic Syndr. 2015 Apr 15;68(5):e84-7. doi: 10.1097/QAI.0000000000000515. No abstract available.

PMID:
25559600
31.

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.

Vale CL, Burdett S, Fisher DJ, Navani N, Parmar MK, Copas AJ, Tierney JF.

Clin Lung Cancer. 2015 May;16(3):173-182.e4. doi: 10.1016/j.cllc.2014.11.007. Epub 2014 Nov 22. Review.

32.

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

Fuller SS, Mercer CH, Copas AJ, Saunders J, Sutcliffe LJ, Cassell JA, Hart G, Johnson AM, Roberts TE, Jackson LJ, Muniina P, Estcourt CS.

Sex Transm Infect. 2015 Mar;91(2):106-10. doi: 10.1136/sextrans-2014-051719. Epub 2014 Dec 15.

33.

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.

Jackson LJ, Roberts TE, Fuller SS, Sutcliffe LJ, Saunders JM, Copas AJ, Mercer CH, Cassell JA, Estcourt CS.

Sex Transm Infect. 2015 Mar;91(2):100-5. doi: 10.1136/sextrans-2014-051715. Epub 2014 Dec 15.

34.

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

Erens B, Burkill S, Couper MP, Conrad F, Clifton S, Tanton C, Phelps A, Datta J, Mercer CH, Sonnenberg P, Prah P, Mitchell KR, Wellings K, Johnson AM, Copas AJ.

J Med Internet Res. 2014 Dec 8;16(12):e276. doi: 10.2196/jmir.3382.

35.

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

Wellings K, Brima N, Sadler K, Copas AJ, McDaid L, Mercer CH, McManus S, Stephenson J, Glasier A.

Contraception. 2015 Jan;91(1):57-66. doi: 10.1016/j.contraception.2014.09.008. Epub 2014 Sep 30.

PMID:
25444254
36.

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

Randall DW, Brima N, Walker D, Connolly J, Laing C, Copas AJ, Edwards SG, Batson S, Miller RF.

Int J STD AIDS. 2015 Nov;26(13):915-21. doi: 10.1177/0956462414561034. Epub 2014 Nov 18.

PMID:
25411349
37.

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

Prah P, Copas AJ, Mercer CH, Nardone A, Johnson AM.

Epidemiol Infect. 2015 May;143(7):1500-10. doi: 10.1017/S0950268814002155. Epub 2014 Aug 28.

38.

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

Sacks RJ, Copas AJ, Wilkinson DM, Robinson AJ.

Sex Transm Infect. 2014 Jun;90(4):315-21. doi: 10.1136/sextrans-2013-051179. Epub 2014 Mar 17.

PMID:
24636998
39.

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

Gupta RK, Marks M, Edwards SG, Smith K, Fletcher K, Lee SM, Ramsay A, Copas AJ, Miller RF.

PLoS One. 2014 Feb 4;9(2):e87442. doi: 10.1371/journal.pone.0087442. eCollection 2014.

40.

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

Seaman SR, Pavlou M, Copas AJ.

Biometrics. 2014 Jun;70(2):449-56. doi: 10.1111/biom.12151. Epub 2014 Jan 30. Review.

41.

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).

Macdowall W, Gibson LJ, Tanton C, Mercer CH, Lewis R, Clifton S, Field N, Datta J, Mitchell KR, Sonnenberg P, Erens B, Copas AJ, Phelps A, Prah P, Johnson AM, Wellings K.

Lancet. 2013 Nov 30;382(9907):1845-55. doi: 10.1016/S0140-6736(13)62300-4. Epub 2013 Nov 26.

42.

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

Field N, Mercer CH, Sonnenberg P, Tanton C, Clifton S, Mitchell KR, Erens B, Macdowall W, Wu F, Datta J, Jones KG, Stevens A, Prah P, Copas AJ, Phelps A, Wellings K, Johnson AM.

Lancet. 2013 Nov 30;382(9907):1830-44. doi: 10.1016/S0140-6736(13)62222-9. Epub 2013 Nov 26.

43.

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

Mitchell KR, Mercer CH, Ploubidis GB, Jones KG, Datta J, Field N, Copas AJ, Tanton C, Erens B, Sonnenberg P, Clifton S, Macdowall W, Phelps A, Johnson AM, Wellings K.

Lancet. 2013 Nov 30;382(9907):1817-29. doi: 10.1016/S0140-6736(13)62366-1. Epub 2013 Nov 26.

44.

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

Wellings K, Jones KG, Mercer CH, Tanton C, Clifton S, Datta J, Copas AJ, Erens B, Gibson LJ, Macdowall W, Sonnenberg P, Phelps A, Johnson AM.

Lancet. 2013 Nov 30;382(9907):1807-16. doi: 10.1016/S0140-6736(13)62071-1. Epub 2013 Nov 26.

45.

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

Sonnenberg P, Clifton S, Beddows S, Field N, Soldan K, Tanton C, Mercer CH, da Silva FC, Alexander S, Copas AJ, Phelps A, Erens B, Prah P, Macdowall W, Wellings K, Ison CA, Johnson AM.

Lancet. 2013 Nov 30;382(9907):1795-806. doi: 10.1016/S0140-6736(13)61947-9. Epub 2013 Nov 26.

46.

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).

Mercer CH, Tanton C, Prah P, Erens B, Sonnenberg P, Clifton S, Macdowall W, Lewis R, Field N, Datta J, Copas AJ, Phelps A, Wellings K, Johnson AM.

Lancet. 2013 Nov 30;382(9907):1781-94. doi: 10.1016/S0140-6736(13)62035-8. Epub 2013 Nov 26.

47.

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).

Prah P, Copas AJ, Mercer CH, Clifton S, Erens B, Phelps A, Tanton C, Sonnenberg P, Macdowall W, Wellings K, Johnson AM.

Sex Transm Infect. 2014 Mar;90(2):90-3. doi: 10.1136/sextrans-2013-051360. Epub 2013 Nov 25.

48.

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

Erens B, Phelps A, Clifton S, Mercer CH, Tanton C, Hussey D, Sonnenberg P, Macdowall W, Field N, Datta J, Mitchell K, Copas AJ, Wellings K, Johnson AM.

Sex Transm Infect. 2014 Mar;90(2):84-9. doi: 10.1136/sextrans-2013-051359. Epub 2013 Nov 25.

49.

Evaluation of respondent-driven sampling.

McCreesh N, Frost SD, Seeley J, Katongole J, Tarsh MN, Ndunguse R, Jichi F, Lunel NL, Maher D, Johnston LG, Sonnenberg P, Copas AJ, Hayes RJ, White RG.

Epidemiology. 2012 Jan;23(1):138-47. doi: 10.1097/EDE.0b013e31823ac17c.

50.

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

Armstrong-James D, Copas AJ, Walzer PD, Edwards SG, Miller RF.

Int J STD AIDS. 2011 Nov;22(11):628-34. doi: 10.1258/ijsa.2011.011040.

PMID:
22096046

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