| Gender (female) | 65.3% | 62.1% | NS |
| Age (mean, years) | 48.3 | 49.7 | NS |
| Indigenous (Australian Aboriginal or Torres Strait Islander) | 1.1% | 2.4% | NS |
| Education | | | NS |
| Left school at 15 years or less | 25.7% | 25.7% | |
| Left school after age 15 | 38.0% | 35.3% | |
| Still studying | 1.9% | 2.4% | |
| Certificate/diploma | 19.8% | 18.8% | |
| Trade/apprenticeship | 9.4% | 12.7% | |
| Bachelor degree or higher | 4.8% | 4.8% | |
| Unknown/missing | 0.4% | 0.3% | |
| Smoking behaviour at baseline | | | |
| Years smoked (mean (SD)) | 30.8 (14.0) | 31.7 (14.4) | NS |
| Cigarettes per day (mean (SD)) | 24.9 (9.8) | 23.5 (9.4) | <0.05 |
| First cigarette of day (within 30 minutes of waking) | 87.3% | 82.4% | <0.05 |
| Previous quitting experience at baseline | | | |
| Ever tried to quit (% yes) | 95.0% | 95.0% | NS |
| Made serious attempt to quit in past year (% yes) | 49.6% | 56.0% | <0.05 |
| Ever contacted quitline (% yes) | 37.9% | 35.5% | NS |