Family history of selected cancer sites and risk of lung cancer among nonsmokers
| . | Cases . | Person-years . | RR* (95% CI) . |
|---|---|---|---|
| Any cancers | 46 | 147.50 | 1.06 (0.76-1.48) |
| Parents† | 30 | 86.05 | 0.97 (0.65-1.45) |
| Siblings‡ | 25 | 85.26 | 1.70 (1.10-2.63) |
| Tobacco-related cancers§ | 18 | 67.57 | 1.13 (0.69-1.85) |
| Parents† | 12 | 40.65 | 1.02 (0.56-1.84) |
| Siblings‡ | 8 | 34.57 | 1.81 (0.88-3.72) |
| Lung | 7 | 24.58 | 0.89 (0.42-1.91) |
| Parents† | 4 | 10.36 | 0.69 (0.25-1.86) |
| Siblings‡ | 3 | 14.22 | 1.46 (0.46-4.59) |
| Esophagus | 8 | 29.48 | 1.80 (0.88-3.67) |
| Parents† | 7 | 24.53 | 1.96 (0.92-4.19) |
| Siblings‡ | 1 | 4.95 | 0.97 (0.14-6.97) |
| Stomach | 14 | 37.06 | 1.34 (0.77-2.33) |
| Parents† | 7 | 17.01 | 0.97 (0.45-2.08) |
| Siblings‡ | 7 | 20.05 | 2.16 (1.01-4.65) |
| Colorectum | 9 | 31.81 | 2.38 (1.21-4.70) |
| Parents† | 6 | 16.21 | 2.33 (1.02-5.28) |
| Siblings‡ | 3 | 15.60 | 2.63 (0.84-8.31) |
| Liver | 7 | 18.92 | 1.20 (0.56-2.57) |
| Parents† | 4 | 10.04 | 1.13 (0.42-3.05) |
| Siblings‡ | 3 | 8.87 | 1.32 (0.42-4.15) |
| Pancreas | 3 | 13.51 | 1.93 (0.62-6.07) |
| Parents† | 1 | 5.75 | 0.95 (0.13-6.83) |
| Siblings‡ | 2 | 7.76 | 4.19 (1.04-16.95) |
| Breast | 5 | 10.05 | 1.54 (0.63-3.76) |
| Parents† | 1 | 0.21 | 0.67 (0.09-4.77) |
| Siblings‡ | 4 | 9.85 | 2.45 (0.90-6.65) |
| . | Cases . | Person-years . | RR* (95% CI) . |
|---|---|---|---|
| Any cancers | 46 | 147.50 | 1.06 (0.76-1.48) |
| Parents† | 30 | 86.05 | 0.97 (0.65-1.45) |
| Siblings‡ | 25 | 85.26 | 1.70 (1.10-2.63) |
| Tobacco-related cancers§ | 18 | 67.57 | 1.13 (0.69-1.85) |
| Parents† | 12 | 40.65 | 1.02 (0.56-1.84) |
| Siblings‡ | 8 | 34.57 | 1.81 (0.88-3.72) |
| Lung | 7 | 24.58 | 0.89 (0.42-1.91) |
| Parents† | 4 | 10.36 | 0.69 (0.25-1.86) |
| Siblings‡ | 3 | 14.22 | 1.46 (0.46-4.59) |
| Esophagus | 8 | 29.48 | 1.80 (0.88-3.67) |
| Parents† | 7 | 24.53 | 1.96 (0.92-4.19) |
| Siblings‡ | 1 | 4.95 | 0.97 (0.14-6.97) |
| Stomach | 14 | 37.06 | 1.34 (0.77-2.33) |
| Parents† | 7 | 17.01 | 0.97 (0.45-2.08) |
| Siblings‡ | 7 | 20.05 | 2.16 (1.01-4.65) |
| Colorectum | 9 | 31.81 | 2.38 (1.21-4.70) |
| Parents† | 6 | 16.21 | 2.33 (1.02-5.28) |
| Siblings‡ | 3 | 15.60 | 2.63 (0.84-8.31) |
| Liver | 7 | 18.92 | 1.20 (0.56-2.57) |
| Parents† | 4 | 10.04 | 1.13 (0.42-3.05) |
| Siblings‡ | 3 | 8.87 | 1.32 (0.42-4.15) |
| Pancreas | 3 | 13.51 | 1.93 (0.62-6.07) |
| Parents† | 1 | 5.75 | 0.95 (0.13-6.83) |
| Siblings‡ | 2 | 7.76 | 4.19 (1.04-16.95) |
| Breast | 5 | 10.05 | 1.54 (0.63-3.76) |
| Parents† | 1 | 0.21 | 0.67 (0.09-4.77) |
| Siblings‡ | 4 | 9.85 | 2.45 (0.90-6.65) |