From: Increased risk of cancer among relatives of patients with lung cancer in China
Case | Control | ||||||
---|---|---|---|---|---|---|---|
Cancers (no.) | Families (no.) | Relativesa (no.) | Ageb (M) | Families (no.) | Relativesa (no.) | Ageb (M) | ORc (95% CI) |
0 | 518 | 2369 | 627 | 2598 | |||
1 | 209 | 902 | 62.2 | 143 | 814 | 61.8 | 1.67** (1.22–2.01) |
2 | 51 | 251 | 61.0 | 22 | 112 | 60.2 | 2.56** (1.44–4.29) |
3 | 21 | 95 | 62.2 | 7 | 37 | 63.1 | 3.50** (1.36–10.02) |
4+ | 4 | 36 | 62.4 | 1 | 17 | 63.2 | 5.91 (0.79–132.10) |