Table 5.

Adjusted prevalence of metabolic syndrome by the three criteria by sex and age

Category	Sample	% (95%CI)
		IDF 2005	Harmonising criteria 2009	CDS 2013
Overall	64 902	20.4 (20.0 to 20.8)	30.0 (29.7 to 30.4)	16.3 (16.0 to 16.6)
Sex
Male	37 500	15.3 (14.8 to 15.8)	24.0 (23.6 to 24.4)	15.2 (14.8 to 15.8)
Female	27 402	9.8 (9.4 to 10.2)	12.3 (12.0 to 12.7)	3.7 (3.5 to 3.9)
χ2		866.551	3455.032	4937.018
P value		<0.001	<0.001	<0.001
Age
18–29	7515	1.9 (1.6 to 2.2)	3.0 (2.6 to 3.4)	1.4 (1.1 to 1.7)
30–39	16 319	2.6 (2.3 to 2.9)	4.0 (3.7 to 4.3)	2.1 (1.9 to 2.3)
40–49	18 977	4.3 (4.0 to 4.6)	6.5 (6.2 to 6.9)	3.7 (3.4 to 4.0)
50–59	14 696	4.4 (4.0 to 4.8)	6.3 (5.9 to 6.7)	3.5 (3.2 to 3.8)
≥60	7395	6.1 (5.5 to 6.7)	8.3 (7.7 to 9.0)	4.2 (3.7 to 4.7)
χ2		4280.676	6104.856	2722.093
P value		<0.001	<0.001	<0.001

CDS, China Diabetes Society; IDF, International Diabetes Federation.