TABLE 3.

Comparison of Influenza Vaccination Rates

	Baseline RR (95% CI)	IC1 RR (95% CI)	IC2 RR (95% CI)
School-based county vs standard-of-care county	0.8 (0.50–1.29)	2.4 (1.74–3.22)c	2.3 (1.90–2.87)c
Provider-based county vs standard-of-care county	1.5 (1.08–2.15)a	1.9 (1.41–2.48)c	1.2 (0.97–1.51)
School-based county vs provider-based county	0.5 (0.33–0.84)b	1.3 (0.96–1.66)	1.7 (1.32–2.06)c

CI indicates confidence interval.

^aP < .05.

^bP < .005.

^cP < .0001.