Table 2 Distribution of lifestyle factors among basal cell carcinoma cases and their matched controls
BCC cases ( n =57 121), n (%) | BCC-free controls ( n =57 121), n (%) | OR crude (95% CI) | OR adjusted a (95% CI) | |
|---|---|---|---|---|
Alcohol status | ||||
Non | 8592 (15.0) | 9442 (16.5) | 1.00 (ref.) | 1.00 (ref.) |
Ex | 1069 (1.9) | 1193 (2.1) | 1.00 (0.92–1.09) | 0.96 (0.87–1.05) |
Current | 42 640 (74.7) | 40 552 (71.0) | 1.18 (1.14–1.22) | 1.19 (1.15–1.23) |
Unknown | 4820 (8.4) | 5934 (10.4) | 0.87 (0.82–0.91) | 1.05 (0.99–1.11) |
Smoking status | ||||
Non | 28 058 (49.1) | 26 439 (46.3) | 1.00 (ref.) | 1.00 (ref.) |
Ex | 19 607 (34.3) | 19 033 (33.3) | 0.98 (0.95–1.00) | 0.91 (0.89–0.94) |
Current | 6999 (12.3) | 8359 (14.6) | 0.78 (0.75–0.80) | 0.77 (0.74–0.80) |
Unknown | 2457 (4.3) | 3290 (5.8) | 0.65 (0.62–0.70) | 0.92 (0.86–0.99) |
BMI (kg m−2) | ||||
12.0–18.4 | 868 (1.5) | 910 (1.6) | 0.86 (0.79–0.95) | 0.86 (0.78–0.95) |
18.5–24.9 | 20 522 (35.9) | 18 591 (32.6) | 1.00 (ref.) | 1.00 (ref.) |
25.0–29.9 | 19 849 (34.8) | 19 246 (33.7) | 0.93 (0.91–0.96) | 0.90 (0.87–0.92) |
30.0–60.0 | 8907 (15.6) | 10 072 (17.6) | 0.80 (0.78–0.83) | 0.73 (0.70–0.75) |
Unknown | 6975 (12.2) | 8302 (14.5) | 0.73 (0.70–0.76) | 0.89 (0.85–0.94) |
