From: Study design: Evaluating gene–environment interactions in the etiology of breast cancer – the WECARE study
Possible CM set configuration
Case
Controls
pr(case)
Case RRT status
pr(controls|case)
Weighta
9
18, 24
λr(Z 9;β)
+
1/12 × 1/7
8/2
18
9, 24
λr(Z 18;β)
-
2/(8 × 7)
12
24
9, 18
λr(Z 24;β)
1/7 × 1/12