Using Big Data to Emulate a Target Trial When a Randomized Trial Is Not AvailableOPEN ACCESS
American Journal of Epidemiology · DOI: 10.1093/aje/kwv254
BMJ · 18 March 2020
A practical guide to calculating the minimum sample size needed when developing a clinical prediction model, with criteria for binary, time-to-event and continuous outcomes. It addresses the frequent problem of models built on too little data and points readers to software that implements the calculations.
Summary written by Sterling IMRES editors. Read the original abstract at the publisher.
Riley RD, Ensor J, Snell KIE, Harrell FE, Martin GP, Reitsma JB, et al. Calculating the sample size required for developing a clinical prediction model. BMJ. 2020;368:m441. doi:10.1136/bmj.m441
American Journal of Epidemiology · DOI: 10.1093/aje/kwv254
Nature Human Behaviour · DOI: 10.1038/s41562-016-0021