Table 2.
Significant risk factors for smoking initiation in full multivariable models
| Males (weighted N=770)
|
Females (weighted N=941)
|
|||||
|---|---|---|---|---|---|---|
| aORa | 95% CI | P | aORa | 95% CI | P | |
| Personal variables | ||||||
| Birth cohort | ||||||
| <=1944 | -- | 1 | ||||
| 1945–1964 | 5.17 | (2.21–12.09) | <0.001 | |||
| 1965–1984 | 15.83 | (6.53–38.39) | <0.001 | |||
| Urbanicity | ||||||
| Raised in rural area | -- | 1 | ||||
| Raised in suburb/town | 1.77 | (0.90–3.49) | 0.10 | |||
| Raised in city | 3.44 | (2.01–5.89) | <0.001 | |||
| Drinking | ||||||
| Before initiation | 1 | 1 | ||||
| After initiation | 1.44 | (1.02–2.03) | <0.05 | 15.60 | (6.19–39.30) | <0.001 |
| First marriage | ||||||
| After marriage | 1 | -- | ||||
| Before marriage | 3.30 | (1.33–8.17) | <0.05 | |||
| Psychiatric history | ||||||
| Externalizing behavior | ||||||
| 0 symptoms | 1 | 1 | ||||
| 1 symptoms | 1.52 | (1.13–2.05) | <0.01 | 2.14 | (1.14–4.01) | <0.05 |
| 2+ symptoms | 1.68 | (1.12–2.52) | <0.05 | 4.22 | (2.74–6.48) | <0.001 |
| Alcohol Abuse | ||||||
| Before onset | 1 | -- | ||||
| After onset | 4.21 | (1.90–9.33) | <0.001 | |||
a
Non-significant risk factors were eliminated from the adjusted model; the odds ratios were also adjusted for the age-specific hazard function