Table 2.

Demographic characteristics of confirmed cases, hospitalized cases and deaths with pandemic (H1N1) 2009 in China, May 2009–21 March 2010.

Characteristics	Confirmed cases	Hospitalized cases	Death cases
Male:female ratio	1.33 (72,735/54,879)	1.34 (18,721/14,001)	1.03 (406/393)
Age (years)
Median	14	16	29
Interquartile range	10–20	10–24	20–49
Age group	n/total n (%)	n/total n (%)	n/total n (%)
0–23 months	2681/127,614 (2)	1165/32,722 (4)	48/799 (6)
2–4 years	6681/127,614 (5)	2404/32,722 (7)	37/799 (5)
5–9 years	22,147/127,614 (17)	4341/32,722 (13)	37/799 (5)
10–18 years	57,466/127,614 (45)	12032/32,722 (37)	60/799 (8)
19–50 years	34,099/127,614 (27)	10320/32,722 (32)	433/799 (54)
≥51 years	4540/127,614 (4)	2460/32,722 (8)	184/799 (23)