California Smokers' Helpline (n = 100048) |
State of California ('96 CTS) (n = 8710) | |
Smoke ⩾ 15 cigarettes/day | 70.1 (70.0 to 70.2) | 44.6 (43.0 to 46.1) |
Smoke within 30 minutes3-150 | 70.1 (69.8 to 70.4) | 55.8 (54.5 to 57.1) |
Have other smokers in the house | 46.1 (45.8 to 46.4) | 39.0 (37.4 to 40.6) |
Tried to quit in the last year | 72.6 (72.2 to 73.0) | 51.4 (50.2 to 52.6) |
Ready to quit in a month | 93.2 (93.0 to 93.4) | 13.8 (12.6 to 15.0) |
The data (presented as % (95% confidence intervals)) cover the period from August 1992 to December 1999. All proxy and repeated callers are excluded. The 1996 CTS data are from the 1996 California tobacco screener and extended surveys, weighted by population.
↵3-150 Only daily smokers were asked this question.