Cases N (%) | Controls N (%) | OR (95% CI) a | OR (95% CI) b | |
---|---|---|---|---|
Time at first cigarette after awakening | ||||
After 60 min | 111 (19.5) | 205 (50.0) | Ref | Ref |
31 to 60 min | 70 (12.3) | 43 (10.5) | 2.94 (1.86; 4.64) | 1.61 (0.98; 2.64) |
6 to 30 min | 219 (38.4) | 99 (24.2) | 4.00 (2.83; 5.64) | 1.72 (1.16; 2.57) |
Within 5 min | 170 (29.8) | 63 (15.4) | 5.21 (3.54; 7.66) | 1.96 (1.25; 3.06) |
Difficulty to refrain for smoking in places where it is forbidden | ||||
No | 389 (68.7) | 346 (85.2) | Ref | Ref |
Yes | 177 (31.3) | 60 (14.8) | 2.68 (1.91; 3.75) | 1.73 (1.21; 2.48) |
Essential cigarette in the day | ||||
None | 56 (10.0) | 118 (29.4) | Ref | Ref |
Other than the first one | 124 (22.1) | 122 (30.4) | 2.08 (1.37; 3.16) | 1.23 (0.77; 1.94) |
The first one in the morning | 307 (54.8) | 128 (31.9) | 4.85 (3.28; 7.17) | 1.79 (1.13; 2.83) |
All | 73 (13.0) | 33 (8.2) | 4.67 (2.74; 7.97) | 1.93 (1.07; 3.48) |
Mean smoking intensity during dependence periods (cigarettes/day) | ||||
≤ 10 | 53 (9.3) | 138 (33.6) | Ref | Ref |
11–20 | 192 (33.5) | 144 (35) | 3.36 (2.26; 5.00) | 1.42 (0.90; 2.24) |
21–30 | 135 (23.6) | 65 (15.8) | 5.49 (3.51; 8.59) | 1.93 (1.15; 3.24) |
≥ 31 | 193 (33.7) | 64 (15.6) | 8.39 (5.4; 13.06) | 2.30 (1.34; 3.93) |
Smoking intensity during the first hour after awakening compared to the rest of the day | ||||
Not different | 358 (65.2) | 343 (84.1) | Ref | Ref |
More intense | 191 (34.8) | 65 (15.9) | 2.60 (1.88; 3.61) | 1.11 (0.76; 1.61) |
Smoking while ill in bed most of the day | ||||
No | 256 (46.4) | 293 (72.4) | Ref | Ref |
Yes | 296 (53.6) | 112 (27.7) | 2.96 (2.23; 3.94) | 1.44 (1.04; 1.99) |
Overall total Fagerström score | ||||
0–3 (low dependence) | 138 (27.0) | 224 (59.6) | Ref | Ref |
4–6 (moderate dependence) | 173 (33.9) | 90 (23.9) | 3.15 (2.24; 4.44) | 1.56 (1.06; 2.31) |
7–10 (high dependence) | 200 (39.1) | 62 (16.5) | 5.08 (3.52; 7.34) | 1.93 (1.25; 2.99) |