See Appendix C for a more detailed explanation of random forests and the matching algorithm used in this report, as well as Zhao, Peng, Xiaogang Su, Tingting Ge and Juanjuan Fan. 2016. “ Propensity ...

Development and validation cohorts included 14,760 and 14,620 patients with lung cancer, respectively. Validation analyses assessed clinical, random forest, and simple logistic regression algorithms.