Independent correlates of five indicators of nicotine dependence symptoms among grade 7 past three month smokers (n=233)
| Independent correlate* (n) | HONC OR (95%CI) | ND/cravings OR (95%CI) | ICD-10 OR (95%CI) | Self medication OR (95%CI) | Withdrawal OR (95%CI) |
|---|---|---|---|---|---|
| *In each model, the independent correlate predicts the risk of having more ND symptoms. | |||||
| †Not significant. | |||||
| ‡Due to zero cells, the number of cigarettes smoked in the past week was categorised as 0–6, 7–24, and ≥25. | |||||
| 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) | ||||