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

Year Number of Results
1988 2
1989 11
1990 50
1991 52
1992 23
1993 34
1994 42
1995 50
1996 71
1997 70
1998 75
1999 92
2000 101
2001 132
2002 173
2003 199
2004 178
2005 257
2006 292
2007 251
2008 273
2009 290
2010 323
2011 348
2012 363
2013 360
2014 420
2015 384
2016 343
2017 391
2018 373
2019 380
2020 340
2021 170
2022 28
2023 10
2024 78

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Page 1
A simplified guide to randomized controlled trials.
Bhide A, Shah PS, Acharya G. Bhide A, et al. Acta Obstet Gynecol Scand. 2018 Apr;97(4):380-387. doi: 10.1111/aogs.13309. Epub 2018 Feb 27. Acta Obstet Gynecol Scand. 2018. PMID: 29377058 Free article. Review.
Cluster randomized controlled trials.
Puffer S, Torgerson DJ, Watson J. Puffer S, et al. J Eval Clin Pract. 2005 Oct;11(5):479-83. doi: 10.1111/j.1365-2753.2005.00568.x. J Eval Clin Pract. 2005. PMID: 16164589
Understanding of interaction (subgroup) analysis in clinical trials.
Brankovic M, Kardys I, Steyerberg EW, Lemeshow S, Markovic M, Rizopoulos D, Boersma E. Brankovic M, et al. Eur J Clin Invest. 2019 Aug;49(8):e13145. doi: 10.1111/eci.13145. Epub 2019 Jun 14. Eur J Clin Invest. 2019. PMID: 31135965 Review.
Randomized Controlled Trials 1: Design.
Curtis BM, Barrett BJ, Parfrey PS. Curtis BM, et al. Methods Mol Biol. 2021;2249:193-211. doi: 10.1007/978-1-0716-1138-8_11. Methods Mol Biol. 2021. PMID: 33871845
Das Stepped Wedge Design: Stufenlos regelbar?
Köberlein-Neu J, Hoffmann F. Köberlein-Neu J, et al. Z Evid Fortbild Qual Gesundhwes. 2017 Oct;126:1-3. doi: 10.1016/j.zefq.2017.09.003. Epub 2017 Oct 11. Z Evid Fortbild Qual Gesundhwes. 2017. PMID: 29029971 German. No abstract available.
Randomized Controlled Trials 2: Analysis.
Foley RN, Parfrey PS. Foley RN, et al. Methods Mol Biol. 2021;2249:213-227. doi: 10.1007/978-1-0716-1138-8_12. Methods Mol Biol. 2021. PMID: 33871846
Challenges of cluster randomized trials.
Campbell MJ. Campbell MJ. J Comp Eff Res. 2014 May;3(3):271-81. doi: 10.2217/cer.14.21. J Comp Eff Res. 2014. PMID: 24969154 Free article. Review.
6,319 results