From bad to worse: collider stratification amplifies confounding bias in the "obesity paradox"

European Journal of Epidemiology (2015) - Comments
pubmed: 26187718 doi: 10.1007/s10654-015-0069-7 issn: 0393-2990 issn: 1573-7284

Hailey R. Banack, Jay S. Kaufman