Table 3.

BMI (kgm⁻²) in different age and gender groups from Han and Non-Han Chinese

		Han		Non-Han
Age (year)	Gender	n	BMI (mean±s.d.)	n	BMI (mean±s.d.)	P-value*
17–35	Male	2761	21.67±2.93	602	21.51±2.86	0.221
	Female	2034	20.12±2.30	370	20.26±2.57	0.263
	All	4795	21.01±2.79	972	21.03±2.82	0.804
36–55	Male	1407	24.83±2.82	238	25.91±3.29	<0.001
	Female	1079	22.25±2.77	195	24.94±3.91	<0.001
	All	2486	23.71±3.07	433	25.47±3.61	<0.001
56~81	Male	462	24.82±2.77	77	26.54±3.23	<0.001
	Female	269	24.19±3.16	56	26.92±3.20	<0.001
	All	731	24.59±2.93	133	26.70±3.21	<0.001
Total	Male	4630	22.94±3.27	917	23.07±3.71	<0.001
	Female	3382	21.12±2.86	621	22.33±4.03	<0.001
	All	8012	22.17±3.23	1538	22.77±3.85	<0.001

^*One-way analysis of variance test.