Sex |
Male (82) | Ref | –† | – | Ref | Ref |
Female (151) | 2.8 (1.4 to 5.4) | | | 2.4 (1.2 to 4.8) | 2.3 (1.1 to 4.6) |
Number of cigarettes in past week |
0 (110 ) | Ref | Ref | Ref‡ | Ref | Ref |
≤1-6 (64) | 2.6 (1.2 to 5.6) | 2.2 (1.0 to 4.7) | 5.5 (1.8 to 17.2) | 2.0 (0.9 to 4.3) | 2.7 (1.2 to 6.1) |
≥7 (59) | 10.9 (4.1 to 28.9) | 19.7 (6.5 to 59.4) | 19.5 (5.4 to 69.8) | 5.2 (2.0 to 13.4) | 3.1 (1.2 to 8.2) |
Chew tobacco |
No (205) | – | – | – | – | Ref |
Yes (16) | | | | | 7.8 (2.0 to 29.6) |
Depression symptoms |
Few (64) | Ref | Ref | – | Ref | Ref |
Some (118) | 2.7 (1.3 to 5.7) | 2.1 (1.0 to 4.4) | | 3.1 (1.4 to 6.7) | 6.6 (2.9 to 15.3) |
Many (51) | 4.8 (1.8 to 12.5) | 2.6 (1.0 to 6.8) | | 7.2 (2.6 to 19.5) | 17.2 (5.9 to 50.1) |
Age smoked whole cigarette, y |
Don’t know (59) | – | Ref | – | Ref | – |
11–13 (126) | | 2.7 (1.1 to 7.1) | | 3.4 (1.1 to 10.4) | |
≤10 (48) | | 3.2 (1.0 to 10.4) | | 5.4 (1.4 to 20.5) | |
How much of the cigarette is smoked |
One or few puffs/don’t know (78) | Ref | Ref | – | Ref | Ref |
Less than half/about half (31) | 1.3 (0.5 to 3.4) | 1.6 (0.6 to 4.3) | | 2.3 (0.8 to 6.4) | 1.6 (0.6 to 4.4) |
Most/all (109) | 4.6 (2.0 to 10.4) | 3.6 (1.4 to 8.8) | | 3.6 (1.4 to 9.1) | 3.2 (1.3 to 7.7) |
Need to smoke more now to be satisfied |
Not at all true (133) | Ref | Ref | Ref | Ref | Ref |
A bit true/very true (75) | 5.6 (2.6 to 12.3) | 8.6 (3.6 to 20.6) | 24.4 (6.5 to 92.0) | 3.5 (1.7 to 7.5) | 5.3 (2.4 to 11.7) |
Need to smoke more now to feel nauseated or ill |
Not at all true (144) | – | – | – | – | Ref |
A bit true/very true (56) | | | | | 2.2 (1.1 to 4.6) |