. 2007 Jun;25(2):179–188.

Table 1.

Distribution of population-based hospitalization rates by age-group and sex

Age-group (months)	Male			Female			Total
	Child-years observed	Hospitalization		Child-years observed	Hospitalization		Child-years observed	Hospitalization
	Child-years observed	No. hospitalized	Rate per 1,000 child-years observed (CD	Child-years observed	No. hospitalized	Rate per 1,000 child-years observed CD	Child-years observed	No. hospitalized	Rate per 1,000 child-years observed (CD
<1	234	8	34.2 (14.7-67.3)	226	5	22.1 (7.1-51.6)	460	13	28.3† (15.0-48.3)
1-5	1,068	143	133.9∗ (112.8-157.7)	1,026	85	82.8 (66.1-102.4)	2,094	228	108.9† (95.2-123.9)
6-11	1,315	176	133.8∗ (114.7-155.1)	1,244	100	80.4 (65.4-97.7)	2,559	276	107.9† (95.5-121.3)
12-17	1,337	152	113.7∗ (96.3-133.2)	1,278	68	53.2 (41.3-67.4)	2,615	220	84.lt (73.3-96.0)
18-23	1,346	88	65.4∗ (52.4-80.5)	1,298	58	44.7 (33.9-57.7)	2,644	146	55.2† (46.6-64.9)
24-29	1,323	54	40.8 (30.6-53.2)	1,293	40	30.9 (22.1-42.1)	2,616	94	35.9† (29.0-43.9)
30-35	1,287	54	42.0 (31.5-54.7)	1,264	39	30.9 (21.9-42.1)	2,551	93	36.5† (29.4-44.6)
36-41	1,221	54	44.2∗ (33.2-57.7)	1,204	24	19.9 (12.7-29.6)	2,425	78	32.2† (25.4-40.1)
42-47	1,159	29	25.0∗ (16.7-35.9)	1,157	14	12.1 (6.6-20.3)	2,316	43	18.6 (13.4-25.0)
48-53	1,167	15	12.9 (7.1-21.1)	1,158	17	14.7 (8.5-23.5)	2,325	32	13.8 (9.4-19.4)
54-59	1,158	16	13.8 (7.8-22.4)	1,139	11	9.7 (4.8-17.2)	2,297	27	11.8 (7.7-17.1)
Total	12,615	789	62.5∗ (58.2-67.0)	12,287	461	37.5 (34.2-41.1)	24,902	1,250	50.2 (47.4-53.0)

∗Indicates a statistically significant difference (p<0.05) between males and iemales oi the particular age-group; †Indicates a statistically significant difference (p<0.05) between that age-group and age-group ot 54-59 years; CI=Confidence interval