Table 4. Goodness of fit test of age distributions of current sample (aged 5–69 yrs) and population in Shanghai in 2008.

Age group (yrs)	Population in Shanghai (%) Pi			Sample (%) Si
	Total	Male	Female	Total	Male	Female	Total	Male	Female
5∼	2.94	2.96	2.92	13.14	13.80	12.42	35.39	39.70	30.91
10∼	3.40	3.39	3.40	12.46	12.46	12.45	24.14	24.27	24.09
15∼	5.51	5.47	5.56	11.20	11.49	10.88	5.88	6.63	5.09
20∼	8.49	8.51	8.46	4.33	4.21	4.46	2.04	2.17	1.89
25∼	9.48	9.56	9.39	4.59	4.79	4.37	2.52	2.38	2.68
30∼	7.38	7.45	7.32	5.20	4.97	5.44	0.64	0.83	0.48
35∼	7.31	7.30	7.32	4.60	4.63	4.57	1.00	0.98	1.03
40∼	7.76	7.83	7.69	6.23	6.63	5.80	0.30	0.18	0.46
45∼	11.29	11.40	11.17	8.64	8.76	8.52	0.62	0.61	0.63
50∼	14.06	14.06	14.06	10.60	10.26	10.96	0.85	1.03	0.68
55∼	10.63	10.36	10.91	8.12	7.97	8.27	0.59	0.55	0.64
60∼	7.23	7.24	7.22	6.61	6.15	7.09	0.05	0.16	0.00
65∼	4.53	4.48	4.58	4.30	3.89	4.74	0.01	0.08	0.01
Chi-square value							74.05	79.56	68.60

Degree of freedom: All values were greater than cut-off points in the whole, female and male samples.