Prevalences of metabolic syndrome and its sex-specific association with socioeconomic status in rural China: a cross-sectional study

Table 1 Characteristics of subjects over sex in the rural Chinese population

Characteristics	Male, (%) (n = 10,998)	Female, (%) (n = 15,838)	Total, (%)	P value^e
Age group (years)				0.013
< 40	18.5	17.7	17.8
40-	23.5	24.9	24.3
50-	23.8	24.2	24.1
60-	21.3	20.7	21.0
≥70	13.4	12.4	12.8
Education year (≥9)	12.4	10.8	11.5	< 0.001
Occupation status ^a				< 0.001
Manual worker	32.7	18.2	24.1
Mental worker	14.8	8.1	10.9
Unemployed	28.4	62.5	48.5
Others	24.0	11.2	16.5
Regular physical exercise (Yes) ^b	43.5	56.1	50.8	< 0.001
Monthly household income				< 0.001
< 2000 RMB	36.7	49.2	44.1
≥2000 RMB	63.3	50.8	55.9
Smoking				< 0.001
Non-smoker	52.9	99.5	80.4
Former smoker	4.1	0.3	1.9
Current smoker	43.0	0.2	17.7
Alcohol consumption (Yes)	38.7	0.3	16.0	< 0.001
Hypertension (Yes) ^c	59.2	49.2	53.3	< 0.001
Diabetes mellitus (Yes)	7.8	7.4	7.6	< 0.001
FPG (> 5.6 mmol/L) ^d	28.3	23.6	25.5	< 0.001
TG (≥1.7 mmol/L)	33.3	23.5	27.5	< 0.001
HDL-C (< 1.03 mmol/L)	8.3	25.2	18.2	< 0.001
Age (years) (Mean ± SD)	53.6 ± 14.3	53.3 ± 13.8	53.4 ± 14.0	0.142
SBP, (mmHg), (Mean ± SD)	133.7 ± 18.9	129.9 ± 21.2	131.4 ± 20.3	< 0.001
DBP, (mmHg), (Mean ± SD)	79.4 ± 11.7	75.4 ± 10.9	77.0 ± 11.4	< 0.001
BMI, (kg/m2), (Mean ± SD)	24.1 ± 3.8	23.6 ± 3.7	23.8 ± 3.8	< 0.001
WC, (cm), (Mean ± SD)	83.0 ± 9.4	78.5 ± 9.6	80.3 ± 9.8	< 0.001
WHR (Mean ± SD)	0.90 ± 0.08	0.86 ± 0.09	0.88 ± 0.09	< 0.001

Notes: FPG Fasting plasma glucose, TG Triglyceride, HDL-C High-density lipoprotein cholesterol, SBP Systolic blood pressure, DBP Diastolic blood pressure, BMI Body mass index, WC Waist circumference, WHR Waist-to-hip ratio; ^a:54 data loss; ^b:2484 data loss; ^c:7 data loss; ^d:52 data loss.^e:t or chi-square test

ISSN: 1471-2458