Table 2.
Characteristics of International Tobacco Four Country Survey sample by country (n=4048)
| Canada | USA | UK | Australia | |
|---|---|---|---|---|
| Sex | ||||
| Female | 55.1% | 58.3% | 56.6% | 53.2% |
| Male | 44.9% | 41.7% | 43.4% | 46.8% |
| Age, years | ||||
| 18–24 | 12.6% | 11.9% | 6.3% | 14.5% |
| 25–39 | 31.8% | 38.8% | 29.6% | 35.7% |
| 40–54 | 35.8% | 36.7% | 35.7% | 35.5% |
| 55+ | 19.9% | 24.5% | 28.3% | 14.3% |
| Education | ||||
| High school diploma or lower | 45.0% | 41.2% | 64.5% | 66.6% |
| Technical, trade school, community college or some university | 41.4% | 44.9% | 23.0% | 20.5% |
| University degree or higher | 13.6% | 13.8% | 12.5% | 12.9% |
| Income | ||||
| Under $30 000/under £15 000 (UK) | 31.1% | 38.1% | 32.8% | 29.5% |
| $30 000–$59 999/£15 001–£30 000 | 38.1% | 37.8% | 36.8% | 35.7% |
| $60 000 and over/£30 001 and over | 30.8% | 24.1% | 30.5% | 34.8% |
| Ethnicity | ||||
| White/English only | 88.7% | 79.4% | 95.1% | 87.2% |
| Other/mixed | 11.3% | 20.6% | 4.9% | 12.8% |
| Mean cigarettes per day (SD) | 16.0 (9.65) | 17.7 (11.5) | 16.6 (9.7) | 18.0 (12.4) |
| Mean time to first cigarette (min) (SD) | 72.2 (140.8) | 71.9 (142.2) | 73.6 (141.8) | 83.7 (154.7) |
Measures of quitting and definitions of quitting outcome.