Table 3.

Changes in Diarrhea-Related Hospitalizations Among Children <5 Years of Age in the Postvaccine Period Compared With the Prevaccine Period, by Age Group

	Median Annual No. of Diarrhea-Related Hospitalizations		Median Annual Diarrhea-Related Hospitalizations, %		Absolute Reduction Proportion of Hospitalizations	Relative Reduction in Hospitalizations, Proportion (95% CI) %	P Value
Age Group	Prevaccine	Postvaccine	Prevaccine	Postvaccine
All ages (0–59 mo)	17 763	11 933	8.0	4.3	3.7	47 (45–48)	<.001
≤11 mo	8212	4926	5.6	2.7	2.9	52 (50–54)	<.001
12–23 mo	5823	3445	20.2	10.2	10.0	49 (47–52)	<.001
24–59 mo	3728	3562	7.8	5.5	2.3	30 (26–34)	<.001
Injuries 0–59 mo	14 145	17 518	6.37	6.26	0.12	2 (0–4)	.09

P values were calculated with the use of a χ² test. Prevaccine period was defined as January 2003 to December 2006. Postvaccine period: age ≤11 months from January 2008 to December 2014, age 12–23 months from January 2009 to December 2014, and age 23–59 months from January 2010 to December 2014.

Abbreviation: CI, confidence interval.