Evaluation of the effectiveness of a WHO-5A model based comprehensive tobacco control program among migrant workers in Guangdong, China: a pilot study

Table 5 GEE^a analyses of intervention effects on smoking rates, smoking-related knowledge and attitude

Outcomes	Available case analyses				Multiple imputation analyses
	Crude analyses ^b		Adjusted analyses ^c		Crude analyses ^b		Adjusted analyses ^c
	OR(95%CI)	p	OR(95%CI)	p	OR(95%CI)	p	OR(95%CI)	p
Smoking rates	0.98 (0.67–1.47)	0.95	0.98(0.66–1.47)	0.94	0.99 (0.70–1.41)	0.96	0.99(0.70–1.41)	0.96
Smoking-related knowledge scores	2.33(1.17–4.64)	0.02	2.31(1.16–4.60)	0.02	2.40(1.32–4.36)	0.02	2.41(1.33–4.38)	0.02
Smoking-related attitude scores	2.84 (1.04–7.77)	0.04	2.85 (1.04–7.80)	0.04	3.07(1.28–7.41)	0.03	3.08(1.28–7.44)	0.03

OR odds ratio, CI confidence interval
^aGeneralized estimation equation models to predict smoking abstinence taking into account within-subject correlation across 3 month follow-up
^bModels included the predictor variables study group and time
^cModels included the predictor variables study group, time, age, and monthly income

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