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Linear regression and the normality assumption.
Schmidt AF, Finan C. Schmidt AF, et al. J Clin Epidemiol. 2018 Jun;98:146-151. doi: 10.1016/j.jclinepi.2017.12.006. Epub 2017 Dec 16. J Clin Epidemiol. 2018. PMID: 29258908
Differences in interaction and subgroup-specific effects were observed between randomized and nonrandomized studies in three empirical examples.
Schmidt AF, Rovers MM, Klungel OH, Hoes AW, Knol MJ, Nielen M, de Boer A, Groenwold RH. Schmidt AF, et al. J Clin Epidemiol. 2013 Jun;66(6):599-607. doi: 10.1016/j.jclinepi.2012.08.008. Epub 2013 Mar 16. J Clin Epidemiol. 2013. PMID: 23510555 Review.
Justification of exclusion criteria was underreported in a review of cardiovascular trials.
Schmidt AF, Groenwold RH, van Delden JJ, van der Does Y, Klungel OH, Roes KC, Hoes AW, van der Graaf R. Schmidt AF, et al. J Clin Epidemiol. 2014 Jun;67(6):635-44. doi: 10.1016/j.jclinepi.2013.12.005. Epub 2014 Mar 5. J Clin Epidemiol. 2014. PMID: 24613498 Review.
Exploring interaction effects in small samples increases rates of false-positive and false-negative findings: results from a systematic review and simulation study.
Schmidt AF, Groenwold RH, Knol MJ, Hoes AW, Nielen M, Roes KC, de Boer A, Klungel OH. Schmidt AF, et al. J Clin Epidemiol. 2014 Jul;67(7):821-9. doi: 10.1016/j.jclinepi.2014.02.008. Epub 2014 Apr 24. J Clin Epidemiol. 2014. PMID: 24768005
Bayesian methods including nonrandomized study data increased the efficiency of postlaunch RCTs.
Schmidt AF, Klugkist I, Klungel OH, Nielen M, de Boer A, Hoes AW, Groenwold RH. Schmidt AF, et al. J Clin Epidemiol. 2015 Apr;68(4):387-96. doi: 10.1016/j.jclinepi.2014.11.015. Epub 2014 Nov 28. J Clin Epidemiol. 2015. PMID: 25554520
Adjusting for Confounding in Early Postlaunch Settings: Going Beyond Logistic Regression Models.
Schmidt AF, Klungel OH, Groenwold RH; GetReal Consortium. Schmidt AF, et al. Epidemiology. 2016 Jan;27(1):133-42. doi: 10.1097/EDE.0000000000000388. Epidemiology. 2016. PMID: 26436519
Re: Is the Risk Difference Really a More Heterogeneous Measure?
Schmidt AF, Dudbridge F, Groenwold RH. Schmidt AF, et al. Epidemiology. 2016 May;27(3):e12. doi: 10.1097/EDE.0000000000000444. Epidemiology. 2016. PMID: 26808601 No abstract available.
Impact of Selection Bias on Estimation of Subsequent Event Risk.
Hu YJ, Schmidt AF, Dudbridge F, Holmes MV, Brophy JM, Tragante V, Li Z, Liao P, Quyyumi AA, McCubrey RO, Horne BD, Hingorani AD, Asselbergs FW, Patel RS, Long Q; The GENIUS-CHD Consortium. Hu YJ, et al. Among authors: schmidt af. Circ Cardiovasc Genet. 2017 Oct;10(5):e001616. doi: 10.1161/CIRCGENETICS.116.001616. Circ Cardiovasc Genet. 2017. PMID: 28986451 Free PMC article.
When drug treatments bias genetic studies: Mediation and interaction.
Schmidt AF, Heerspink HJL, Denig P, Finan C, Groenwold RHH. Schmidt AF, et al. PLoS One. 2019 Aug 28;14(8):e0221209. doi: 10.1371/journal.pone.0221209. eCollection 2019. PLoS One. 2019. PMID: 31461463 Free PMC article.
Genetic drug target validation using Mendelian randomisation.
Schmidt AF, Finan C, Gordillo-Marañón M, Asselbergs FW, Freitag DF, Patel RS, Tyl B, Chopade S, Faraway R, Zwierzyna M, Hingorani AD. Schmidt AF, et al. Nat Commun. 2020 Jun 26;11(1):3255. doi: 10.1038/s41467-020-16969-0. Nat Commun. 2020. PMID: 32591531 Free PMC article.
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