Five comparisons using multiple logistic regressions for the associations, outcome as susceptible to cigarette smoking—YSS 2012/2013—student grade 9–12
| Susceptible to cigarette smoking* | OR crude | OR adjusted | |
|---|---|---|---|
| Outcomes | n (%) | (95% CI) | (95%CI) |
| Comparison 1 (n=17 090)† | |||
| Never tried cigarette smoking, but ever tried other types of tobacco | 775 (45.7) | 2.18 (1.84 to 2.59) | 1.96 (1.59 to 2.42) |
| Never tried cigarette smoking, never tried any types of tobacco (ref) | 4220 (27.8) | 1.00 | 1.00 |
| Comparison 2 (n=16 231)† | |||
| Never tried cigarette smoking, but ever tried some flavoured tobacco | 376 (47.5) | 2.35 (1.84 to 3.00) | 2.20 (1.63 to 2.96) |
| Never tried cigarette smoking, never tried any types of tobacco (ref) | 4220 (27.8) | 1.00 | 1.00 |
| Comparison 3 (n=16 770)‡ | |||
| Never tried cigarette smoking, but some flavoured tobacco in past 30 days | 200 (51.4) | 2.61 (1.81 to 3.77) | 1.69 (1.08 to 2.64) |
| Never tried cigarette smoking, no tobacco in past 30 days (ref) | 4644 (28.9) | 1.00 | 1.00 |
| Comparison 4 (n=1682)§ | |||
| Never tried cigarette smoking, but ever tried some flavoured tobacco | 376 (47.5) | 1.16 (0.85 to 1.59) | 1.21 (0.88 to 1.67) |
| Never cigarette, never flavoured tobacco, but ever other types of tobacco (ref) | 436 (43.8) | 1.00 | 1.00 |
| Comparison (n=683)§ | |||
| Never tried cigarette smoking, but some flavoured tobacco in past 30 days | 200 (51.4) | 1.08 (0.63 to 1.85) | 0.93 (0.52 to 1.64) |
| Never cigarette, no flavoured in past 30 days, but ATP in past 30 days (ref) | 153 (49.6) | 1.00 | 1.00 |
*Unweighted number and per cent of participants who were classified to be susceptible to cigarette smoking in each group.
†Variables considered as confounders in the final model: gender, grade, ethnicity, overall self-esteem score, family member smoking, number of closest friends smoking and risk of having an alcohol or drug-related disorder.
‡Variables considered as confounders in the final model: gender, grade, family member smoking and risk of having an alcohol or drug-related disorder.
§Variables considered as confounders in the final model: gender, grade and family member smoking.