Table 3.

Odds ratios and 95% confidence intervals (CI) for likelihood of influenza vaccination in generalized estimating equation (GEE) modeling

Group		Reference group	Odds ratio	95% CI	P value
Main Effects
Age group
2–8 years	vs.	<2 years	0.48	0.41–0.57	<0.001
9–18 years	vs.	<2 years	0.29	0.25–0.35	<0.001
Female	vs.	Males	0.90	0.84–0.97	0.006
Non-white race	vs.	White race	0.79	0.73–0.86	<0.001
Commercial insurance	vs.	Self/publicly insured	1.47	1.36–1.59	<0.001
Post intervention	vs.	Pre-intervention	1.68	1.58–1.79	<0.001
Interaction term – race and year
Non-white race pre-intervention	vs.	White race pre-intervention	0.66	0.59–0.73	<0.001
Non-white race post intervention	vs.	White race post intervention	0.95	0.85–1.05	0.289