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Time-modified confounding.
Platt RW, Schisterman EF, Cole SR. Platt RW, et al. Am J Epidemiol. 2009 Sep 15;170(6):687-94. doi: 10.1093/aje/kwp175. Epub 2009 Aug 12. Am J Epidemiol. 2009. PMID: 19675141 Free PMC article.
Illustrating bias due to conditioning on a collider.
Cole SR, Platt RW, Schisterman EF, Chu H, Westreich D, Richardson D, Poole C. Cole SR, et al. Int J Epidemiol. 2010 Apr;39(2):417-20. doi: 10.1093/ije/dyp334. Epub 2009 Nov 19. Int J Epidemiol. 2010. PMID: 19926667 Free PMC article.