Table 2

Odds ratios (OR) and 95% confidence intervals (CI) for likelihood of Marlboro gift with purchase and greater extent of Marlboro store advertising in states with tobacco control programmes, controlling for store type

		Gifts with purchase^2-151			Exterior advertising^2-152			Interior advertising^2-152
		OR	95% CI		OR	95% CI		OR	95% CI
Zero order models
Tobacco control programme (adjusting for store type)	2.590^2-165	(1.57 to 4.26)		1.49^2-150	(1.05 to 2.11)		1.22	(0.93 to 1.60)
Local community tobacco ad restrictions (adjusting for store type)	1.638^2-150	(1.02 to 2.63)		0.218^2-150	(0.13 to 0.38)		1.10	(0.88 to 1.38)

Combined model
Tobacco control programme	2.48^2-160	(1.37 to 4.51)		1.24	(0.83 to 1.86)		1.21	(0.88 to 1.66)
Local community tobacco ad restrictions	1.07	(0.61 to 1.90)		1.25	(0.89 to 1.76)		1.01	(0.77 to 1.32)
	χ² 19.47 df 5 p<0.0016			748.23 575 df p=1.30	552.47 575 df p=0.96

Odds ratios were calculated by exponentiating the coefficients.
↵2-151 Logistic regression analysis;
↵2-152 Poisson regression analysis.
↵2-150 p < 0.05;
↵2-160 p < 0.01;
↵2-165 p < 0.001.