Table 4.

Estimated prevalence of MetS relating to abdominal obesity by three criteria (N, %)

Criteria	BMI				P value
	Underweight (n=2633)	Normal weight (n=32 829)	Overweight (n=22 935)	Obesity (n=6505)
IDF 2005	2 (0.1)	2028 (6.2)	9519 (41.5)	5216 (80.2)	<0.001
Harmonising criteria 2009	57 (2.2)	5851 (17.8)	13 477 (58.8)	5258 (80.8)	<0.001
CDS 2013	13 (0.5)	1912 (5.8)	7324 (31.9)	4111 (63.2)	<0.001

BMI, body mass index; CDS, China Diabetes Society; IDF, International Diabetes Federation; MetS, metabolic syndrome.