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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1995 1
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1998 3
1999 1
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2001 9
2002 5
2003 7
2004 5
2005 15
2006 16
2007 11
2008 9
2009 12
2010 10
2011 13
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2018 16
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354 results

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Page 1
Sample size calculation for a stepped wedge trial.
Baio G, Copas A, Ambler G, Hargreaves J, Beard E, Omar RZ. Baio G, et al. Among authors: copas a. Trials. 2015 Aug 17;16:354. doi: 10.1186/s13063-015-0840-9. Trials. 2015. PMID: 26282553 Free PMC article. Review.
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. Mercer CH, et al. Among authors: copas aj. Sex Transm Infect. 2019 May;95(3):159-161. doi: 10.1136/sextrans-2018-053571. Epub 2019 Mar 19. Sex Transm Infect. 2019. PMID: 30890634 Free PMC article. No abstract available.
How should a cluster randomized trial be analyzed?
Billot L, Copas A, Leyrat C, Forbes A, Turner EL. Billot L, et al. Among authors: copas a. J Epidemiol Popul Health. 2024 Feb;72(1):202196. doi: 10.1016/j.jeph.2024.202196. Epub 2024 Feb 10. J Epidemiol Popul Health. 2024. PMID: 38477477 Free PMC article.
How important is randomisation in a stepped wedge trial?
Hargreaves JR, Prost A, Fielding KL, Copas AJ. Hargreaves JR, et al. Among authors: copas aj. Trials. 2015 Aug 16;16:359. doi: 10.1186/s13063-015-0872-1. Trials. 2015. PMID: 26275907 Free PMC article.
Economic evaluation of a conditional cash transfer to retain women in the continuum of care during pregnancy, birth and the postnatal period in Kenya.
Palmer T, Batura N, Skordis J, Stirrup O, Vanhuyse F, Copas A, Odhiambo A, Ogendo N, Dickin S, Mwaki A, Haghparast-Bidgoli H. Palmer T, et al. Among authors: copas a. PLOS Glob Public Health. 2022 Mar 7;2(3):e0000128. doi: 10.1371/journal.pgph.0000128. eCollection 2022. PLOS Glob Public Health. 2022. PMID: 36962294 Free PMC article.
Prevalence of Curable Sexually Transmitted Infections in a Population-Representative Sample of Young Adults in a High HIV Incidence Area in South Africa.
Jarolimova J, Chidumwa G, Chimbindi N, Okesola N, Dreyer J, Smit T, Seeley J, Harling G, Copas A, Baisley K, Shahmanesh M, Herbst C, McGrath N, Zuma T, Khoza T, Behuhuma N, Bassett IV, Sherr L; Isisekelo Research Group. Jarolimova J, et al. Among authors: copas a. Sex Transm Dis. 2023 Dec 1;50(12):796-803. doi: 10.1097/OLQ.0000000000001871. Epub 2023 Oct 8. Sex Transm Dis. 2023. PMID: 37944161 Free PMC article. Clinical Trial.
354 results