Table 3.

Numbers and crude incidence rates, by age group, of diarrhea-related hospitalizations (all diagnoses) among children younger than five years of age in Quebec, April 1, 1985 to March 31, 1998

		Proportions by age group
Months of age	Number of hospitalizations due to diarrhea	Percentage	95% CI	Quebec cumulated population (13 years)	Crude incidence rate by age group and 95%Cl*
1-11	22,455	35.1	34.8% to 35.5%	1,062,569	2113.2 (2085.9 to 2140.6)
12-23	18,493	28.9	28.6% to 29.3%	1,169,859	1580.7 (1558.1 to 1603.3)
24-35	10,998	17.2	16.9% to 17.5%	1,175,353	935.7 (918.3 to 953.1)
36-47	6978	10.9	10.6% to 11.1%	1,180,402	591.1 (577.3 to 604.9)
48-59	4903	7.6	7.4% to 7.8%	1,191,539	411.4 (399.9 to 422.9)
Total (1-59 months)	68,827	100.0		5,779,772	1104.3 (1095.8 to 1112.8)

^*Crude incidence rate by age group and 95% CI per 100,000 children of the same age groups