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Year Number of Results
1995 1
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355 results

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Page 1
Reporting of stepped wedge cluster randomised trials: extension of the CONSORT 2010 statement with explanation and elaboration.
Hemming K, Taljaard M, McKenzie JE, Hooper R, Copas A, Thompson JA, Dixon-Woods M, Aldcroft A, Doussau A, Grayling M, Kristunas C, Goldstein CE, Campbell MK, Girling A, Eldridge S, Campbell MJ, Lilford RJ, Weijer C, Forbes AB, Grimshaw JM. Hemming K, et al. Among authors: copas a. BMJ. 2018 Nov 9;363:k1614. doi: 10.1136/bmj.k1614. BMJ. 2018. PMID: 30413417 Free PMC article.
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.
Exploring different objectives in non-inferiority trials.
Tweed CD, Quartagno M, Clements MN, Turner RM, Nunn AJ, Dunn DT, White IR, Copas AJ. Tweed CD, et al. Among authors: copas aj. BMJ. 2024 Jun 17;385:e078000. doi: 10.1136/bmj-2023-078000. BMJ. 2024. PMID: 38886014 Free PMC article.
Demystifying estimands in cluster-randomised trials.
Kahan BC, Blette BS, Harhay MO, Halpern SD, Jairath V, Copas A, Li F. Kahan BC, et al. Among authors: copas a. Stat Methods Med Res. 2024 Jul;33(7):1211-1232. doi: 10.1177/09622802241254197. Epub 2024 May 23. Stat Methods Med Res. 2024. PMID: 38780480 Free PMC article.
Prevalence of non-communicable diseases among household contacts of people with tuberculosis: A systematic review and individual participant data meta-analysis.
Hamada Y, Quartagno M, Malik F, Ntshamane K, Tisler A, Gaikwad S, Acuna-Villaorduna C, Bhavani PK, Alisjahbana B, Ronacher K, Apriani L, Becerra M, Chu AL, Creswell J, Diaz G, Ferro BE, Galea JT, Grandjean L, Grewal HMS, Gupta A, Jones-López EC, Kleynhans L, Lecca L, MacPherson P, Murray M, Marín D, Restrepo BI, Shivakumar SVBY, Shu E, Sivakumaran D, Vo LNQ, Webb EL, Copas A, Abubakar I, Rangaka MX. Hamada Y, et al. Among authors: copas a. Trop Med Int Health. 2024 Sep;29(9):768-780. doi: 10.1111/tmi.14038. Epub 2024 Jul 27. Trop Med Int Health. 2024. PMID: 39073229 Review.
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.
Cohort Profile: The Flu Watch Study.
Fragaszy EB, Warren-Gash C, Wang L, Copas A, Dukes O, Edmunds WJ, Goonetilleke N, Harvey G, Johnson AM, Kovar J, Lim MS, McMichael A, Millett ER, Nazareth I, Nguyen-Van-Tam JS, Tabassum F, Watson JM, Wurie F, Zambon M, Hayward AC; Flu Watch Group. Fragaszy EB, et al. Among authors: copas a. Int J Epidemiol. 2017 Apr 1;46(2):e18. doi: 10.1093/ije/dyv370. Int J Epidemiol. 2017. PMID: 26940466 Free PMC article. No abstract available.
Differences in Factors Associated With Preterm and Term Stillbirth: A Secondary Cohort Analysis of the DESiGN Trial.
Winsloe C, Elhindi J, Vieira MC, Relph S, Arcus CG, Alagna A, Briley A, Johnson M, Page LM, Shennan A, Thilaganathan B, Marlow N, Lees C, Lawlor DA, Khalil A, Sandall J, Copas A, Pasupathy D; DESiGN Trial team. Winsloe C, et al. Among authors: copas a. BJOG. 2025 Jan;132(1):89-98. doi: 10.1111/1471-0528.17951. Epub 2024 Sep 18. BJOG. 2025. PMID: 39291344 Free PMC article. Clinical Trial.
355 results