Table 2. Age and vaccination coverage for children < 60 months admitted for acute gastroenteritis during rotavirus seasons (Jan-Jun) before and after vaccine introduction¹.

	Pre-Vaccine (2002–2005)			Early Post-Vaccine (2008–2011)			Late Post-Vaccine (2012–2015)
	Odd Seasons	Even Seasons	p-value	Odd Seasons	Even Seasons	p-value	Odd Seasons	Even Seasons	p-value
Hospitalizations, n	1,823	1,271		2,424	1,786		1,547	1,620
Hospitalization rate2 (per 10,000 p-y)	131.2	124.0		60.7	54.4		38.0	34.8
95% CI	125.3–137.3	117.4–131.0		58.4–63.2	51.9–57.0		36.1–39.9	33.1–36.5
Median age (mo)	13	11	<.0001	11	10	<.0001	12	10	<.0001
IQR	7–20	6–17		4–22	3–17		5–23	3–20
Rotavirus vaccine-eligible hospitalizations, n	N/A			2,187	1,474		1,515	1,524
Vaccine coverage				51%	52%	0.43	68%	71%	0.06
95% CI				49–53%	50–55%		66–71%	69–74%

^1. 2006–2007 excluded as transition years

^2. Hospitalization rate for children 0–59 months

Abbreviation: P-y = person-years