Table 3. Comparison of the M/F ratios by age for 2009 pdmH1N1 with that for 2005 seasonal influenza.

Age Group	Z statistic	p- value
0	0.32	0.750
1	-1.33	0.184
2	1.87	0.062
3	0.91	0.365
4	3.73	<0.001*
5	5.53	<0.001*
6	6.21	<0.001*
7	4.36	<0.001*
8	8.34	<0.001*
9	9.40	<0.001*
10–14	12.46	<0.001*
15–19	9.12	<0.001*
20–29	26.85	<0.001*
30–39	-2.93	0.003
40–49	-26.42	<0.001*
50–59	-9.11	<0.001*
60–69	-12.12	<0.001*
70–79	-4.16	<0.001*
≥80	3.88	<0.001*

*: Significance with the Bonferroni's correction ().