| Characteristic (reference category) | Susceptibility to initiating smoking | |||
|---|---|---|---|---|
| Model 1 | Model 2 | |||
| OR estimate | 95% CI | OR estimate | 95% CI | |
| Smoke-free home (smoking permitted) | ||||
| Completely | 0.687* | (0.588-0.804) | 0.787* | (0.664-0.932) |
| Sex (female) | ||||
| Male | 1.072 | (0.954-1.205) | 1.039 | (0.920-1.172) |
| Grade (12) | ||||
| 9 | 1.481* | (1.239-1.770) | 1.458* | (1.213-1.753) |
| 10 | 1.441* | (1.204-1.726) | 1.461* | (1.214-1.759) |
| 11 | 1.108 | (0.914-1.342) | 1.129 | (0.926-1.376) |
| Province (Ontario)† | ||||
| Atlantic | 0.853* | (0.755-0.965) | 0.862* | (0.760-0.979) |
| Quebec | 0.708* | (0.580-0.865) | 0.729* | (0.592-0.898) |
| Saskatchewan | 1.030 | (0.901-1.178) | 1.042 | (0.907-1.196) |
| Alberta | 0.926 | (0.789-1.087) | 0.936 | (0.793-1.103) |
| British Columbia | 0.857* | (0.741-0.990) | 0.882 | (0.759-1.025) |
| Race (non-white)† | ||||
| White | 1.106 | (0.968-1.263) | 1.093 | (0.952-1.255) |
| Overall self-esteem score (≥ 12)† | ||||
| ≤ 8 | 2.240* | (1.847-2.715) | 2.198* | (1.802-2.680) |
| score 9-11 | 1.317* | (1.092-1.589) | 1.304* | (1.075-1.583) |
| School grade (levels 3 and 4)† | ||||
| Level 3 | 1.231* | (1.067-1.421) | 1.191* | (1.027-1.381) |
| Level 2 and lower | 1.543* | (1.103-2.160) | 1.439* | (1.004-2.061) |
| Any family member who smokes (None)† | ||||
| ≥ 1 | N/A | N/A | 1.349* | (1.190-1.529) |
Note: CI = confidence interval, OR = odds ratio.
*Significant at the p = 0.05 level.
†Some missing values for this variable in the study population.