ALS cases | Controls | RR (95% CI) * | RR (95% CI)** | |
---|---|---|---|---|
Entire sample | ||||
Never | 377 (33.0) | 3714 (32.7) | 1.00 (ref.) | 1.00 (ref.) |
Ever | 575 (50.3) | 5615 (49.4) | 1.04 (0.80-1.34) | 1.09 (0.81-1.46) |
Former | 273 (23.9) | 2696 (23.7) | 1.01 (0.74-1.39) | 1.15 (0.80-1.64) |
Current | 302 (26.4) | 2919 (25.7) | 1.06 (0.79-1.41) | 1.04 (0.74-1.47) |
Missing | 191 (16.7) | 2042 (18.0) | 0.88 (0.68-1.14) | 0.94 (0.69-1.26) |
Men | ||||
Never | 207 (32.8) | 1896 (30.3) | 1.00 (ref.) | 1.00 (ref.) |
Ever | 318 (50.4) | 3180 (50.8) | 0.75 (0.53-1.06) | 0.75 (0.50-1.11) |
Former | 157 (24.9) | 1584 (25.3) | 0.73 (0.48-1.11) | 0.70 (0.43-1.14) |
Current | 161 (25.5) | 1596 (25.5) | 0.76 (0.52-1.13) | 0.79 (0.50-1.24) |
Missing | 106 (16.8) | 1191 (19.0) | 0.64 (0.44-0.92) | 0.67 (0.44-1.02) |
Women | ||||
Never | 170 (33.2) | 1818 (35.6) | 1.00 (ref.) | 1.00 (ref.) |
Ever | 257 (50.2) | 2435 (47.7) | 1.53 (1.04-2.23) | 1.68 (1.08-2.61) |
Former | 116 (22.7) | 1112 (21.8) | 1.49 (0.92-2.43) | 2.06 (1.20-3.53) |
Current | 141 (27.5) | 1323 (25.9) | 1.55 (1.01-2.38) | 1.41 (0.84-2.36) |
Missing | 85 (16.6) | 851 (16.7) | 1.25 (0.85-1.82) | 1.33 (0.86-2.04) |
P interaction | 0.01 | 0.02 |