Linear regression model of taxed sales as a function of cigarette price, Tobacco Control Program expenditures, and time, California compared with the rest of the nation, 1960 to 2002
| Parameter estimate (95% confidence limits) | P | |
|---|---|---|
| Intercept | 223.1 (213.8 to 232.4) | <0.001 |
| Price/pack, 2000 $ | −12.5 (−18.1 to −6.9) | <0.001 |
| Program expenditure per adult, 2000 $ | −4.5 (−8.0 to −1.1) | 0.01 |
| Indicator for California, 1960 offset | 21.1 (14.5 to 27.7) | <0.001 |
| Time (y) | −1.6 (−1.8 to −1.4) | <0.001 |
| California-specific time trend (y) | −1.7 (−2.0 to −1.4) | <0.001 |