Associations between cigarette smoking, BMI, and high blood pressure and RCC
| . | Cases (%) . | Controls (%) . | OR . | 95% CI . |
|---|---|---|---|---|
| Cigarette smoking (tertiles pack-years)a | ||||
| Never smoker | 52 (30.2) | 215 (35.1) | 1.0 | |
| Low (≤17) | 39 (22.7) | 134 (21.9) | 1.2 | 0.7–2.1 |
| Middle (>17–39) | 37 (21.5) | 131 (21.4) | 1.3 | 0.7–2.3 |
| High (>39) | 44 (25.6) | 132 (21.6) | 1.8 | 1.0–3.2 |
| BMI (tertiles)b | ||||
| Low | 43 (24.9) | 205 (33.4) | 1.0 | |
| Middle | 62 (35.8) | 206 (33.6) | 1.4 | 0.9–2.4 |
| High | 68 (39.3) | 203 (33.1) | 1.7 | 1.0–2.9 |
| High blood pressurec | ||||
| No | 91 (52.9) | 56 (81.2) | 1.0 | |
| Yes | 81 (47.1) | 13 (18.8) | 4.8 | 2.2–10.3 |
| . | Cases (%) . | Controls (%) . | OR . | 95% CI . |
|---|---|---|---|---|
| Cigarette smoking (tertiles pack-years)a | ||||
| Never smoker | 52 (30.2) | 215 (35.1) | 1.0 | |
| Low (≤17) | 39 (22.7) | 134 (21.9) | 1.2 | 0.7–2.1 |
| Middle (>17–39) | 37 (21.5) | 131 (21.4) | 1.3 | 0.7–2.3 |
| High (>39) | 44 (25.6) | 132 (21.6) | 1.8 | 1.0–3.2 |
| BMI (tertiles)b | ||||
| Low | 43 (24.9) | 205 (33.4) | 1.0 | |
| Middle | 62 (35.8) | 206 (33.6) | 1.4 | 0.9–2.4 |
| High | 68 (39.3) | 203 (33.1) | 1.7 | 1.0–2.9 |
| High blood pressurec | ||||
| No | 91 (52.9) | 56 (81.2) | 1.0 | |
| Yes | 81 (47.1) | 13 (18.8) | 4.8 | 2.2–10.3 |
ORs adjusted for age, sex, county, and BMI. Test for trend across tertiles pack-years, P =0.03.
ORs adjusted for age, sex, county, and pack-years smoking. Cut points for tertiles of BMI were 25.0 and 27.4 for males and 22.9 and 26.4 for females. Test for trend across tertiles BMI, P = 0.04.
Self-reported history of diagnosis of high blood pressure. Information was available for only a subset of control subjects, n = 69. OR adjusted for age, sex, county,BMI, and pack-years smoking.