Table 4.

Likelihood of Child Receiving Influenza Vaccine in Gener-alized Estimating Equation (GEE) Modeling^*

Independent Variable	Odds Ratio (95% Confidence Interval)	P
2–8 y, reference = <2 y	0.54 (0.52–0.56)	<.001
9–18 y, reference = <2 y	0.31 (0.30–0.32)	<.001
9–18 y, reference = 2–8 y	0.57 (0.56–0.59)	<.001
White race, reference = nonwhite race	1.15(1.11–1.19)	<.001
Commercial insurance, reference = self-insurance and public insurance	1.33 (1.29–1.37)	<.001
Active intervention, reference = baseline	1.47 (1.44–1.50)	<.001
Maintenance, reference = active intervention	1.02 (1.00–1.05)	.024
Maintenance, reference = baseline	1.50 (1.47–1.54)	<.001

^*GEE regression model includes influenza vaccination status as the binary outcome variable and age groups, race, insurance type, and year as the independent variables.