Table 1.

Prevalence of MetS in Chinese aging population.

Characteristics	Cases	Prevalence (%)	95% CI	Standard error (%)
Total	3090	33.38	32.42–34.34	0.49
Age group
40–50	614	30.93	28.93–33.00	1.04
50–60	1140	33.90	32.32–35.52	0.82
60–70	930	35.78	33.96–37.65	0.94
> 70	406	30.97	28.52–33.53	1.28
Gender
Men	862	20.28	19.10–21.52	0.62
Women	2228	44.49	43.17–45.87	0.70
Marital status
Married with spouse present	2554	33.19	32.14–34.25	0.54
Others	536	34.31	32.00–36.71	1.20
GDP per capita
< 1000	429	31.54	29.13–34.07	1.26
1000–3000	400	29.11	26.77–31.57	1.23
3000–5000	343	32.45	29.69–35.34	1.44
5000–10,000	655	32.38	30.37–34.45	1.04
> 10,000	1237	36.77	35.16–38.42	0.83
Educational level
No formal education	1546	34.90	33.51–36.32	0.72
Elementary school	642	31.80	29.80–33.86	1.04
Middle school	593	32.02	29.93–34.18	1.08
High school	200	32.26	28.68–36.05	1.88
College degree or above	109	32.83	27.97–38.09	2.58
Hukou
Agricultural	2384	31.66	30.62–32.72	0.54
Non-Agricultural	684	40.62	38.29–42.99	1.20
Others	22	52.38	36.91–67.41	7.80
Smoking
No	2319	40.65	39.38–41.93	0.65
Yes	769	21.70	20.37–23.09	0.69
Alcohol consumption
Never	2387	38.03	36.83–39.24	0.61
Less than once a month	195	27.05	23.92–30.42	1.67
More than once a month	506	22.49	20.81–24.26	0.88
Uric acid
Non-hyperuricemia	2799	32.34	31.36–33.33	0.50
Hyperuricemia	249	47.07	42.83–51.35	2.17
Low density lipoprotein
Normal	1469	37.49	35.99–39.02	0.77
High	1565	29.82	28.59–31.07	0.63
HbA1c
Normal	2616	31.03	30.05–32.02	0.50
High	413	59.86	56.14–63.46	1.87