Characteristics | Total (n = 1608) | MetS (n = 257) | Non-MetS (n = 1351) | P value |
---|---|---|---|---|
Mean ± SD |  |  |  |  |
BMI (kg/m2) | 24.10 ± 2.97 | 26.87 ± 2.82 | 23.57 ± 2.70 | < 0.001 |
WC (cm) | 85.50 ± 8.67 | 94.42 ± 6.90 | 83.80 ± 7.90 | < 0.001 |
DBP (mmHg) | 81.50 ± 9.24 | 88.81 ± 9.20 | 80.11 ± 8.57 | < 0.001 |
SBP (mmHg) | 121.60 ± 12.77 | 130.74 ± 13.28 | 119.87 ± 11.91 | < 0.001 |
TG (mmol/L) | 1.58 ± 1.14 | 3.03 ± 1.67 | 1.30 ± 0.74 | < 0.001 |
HDL-C (mmol/L) | 1.34 ± 0.31 | 1.07 ± 0.22 | 1.38 ± 0.30 | < 0.001 |
FBG (mmol/L) | 4.49 ± 1.01 | 5.10 ± 1.78 | 4.38 ± 0.72 | < 0.001 |
N (%) | Â | Â | Â | Â |
Gender | Â | Â | Â | Â |
 Male | 1402(87.2%) | 252(98.1%) | 1150(85.1%) | < 0.001 |
 Female | 206(12.8%) | 5(1.9%) | 201(14.9%) |  |
Age(years) | Â | Â | Â | Â |
 20–29 | 439(27.3%) | 41(16.0%) | 398(29.5%) | < 0.001a |
 30–39 | 599(37.3%) | 96(37.4%) | 503(37.2%) |  |
 40–49 | 399(24.8%) | 80(31.1%) | 319(23.6%) |  |
 ≥ 50 | 171(10.6%) | 40(15.6%) | 131(9.7%) |  |
Nation | Â | Â | Â | Â |
 Han | 1542(95.9%) | 243(94.6%) | 1299(96.2%) | 0.236 |
 Minority | 66(4.1%) | 14(5.4%) | 52(3.8%) |  |
Marital status | Â | Â | Â | Â |
 Single | 301(18.7%) | 27(10.5%) | 274(20.3%) | < 0.001 |
 Married | 1307(81.3%) | 230(89.5%) | 1077(79.7%) |  |
Education | Â | Â | Â | Â |
 Junior college and below | 752(46.8%) | 139(54.1%) | 613(45.4%) | 0.01 |
 Undergraduate or above | 856(53.2%) | 118(45.9%) | 738(54.6%) |  |
Working years(years) | Â | Â | Â | Â |
 ≤ 10 | 734(45.6%) | 80(31.1%) | 654(48.4%) | < 0.001a |
 11–20 | 425(26.4%) | 75(29.2%) | 350(25.9%) |  |
 > 20 | 449(27.9%) | 102(39.7%) | 347(25.7%) |  |
Work system | Â | Â | Â | Â |
 Regular day shift | 738(45.9%) | 93(36.2%) | 645(47.7%) | 0.001 |
 Shift work | 870(54.1%) | 164(63.8%) | 706(52.3%) |  |
Chemical toxicant | Â | Â | Â | Â |
 Yes | 948(59.0%) | 158(61.5%) | 790(58.5%) | 0.370 |
 No | 660(41.0%) | 99(38.5%) | 561(41.5%) |  |
Noise | Â | Â | Â | Â |
 Yes | 1212(75.4%) | 211(82.1%) | 1001(74.1%) | 0.006 |
 No | 396(24.6%) | 46(17.9%) | 350(25.9%) |  |
Dust | Â | Â | Â | Â |
 Yes | 801(49.8%) | 144(56.0%) | 657(48.6%) | 0.030 |
 No | 807(50.2%) | 113(44.0%) | 694(51.4%) |  |
High temperature | Â | Â | Â | Â |
 Yes | 855(53.2%) | 146(56.8%) | 709(52.5%) | 0.202 |
 No | 753(46.8%) | 111(43.2%) | 642(47.5%) |  |
VDT operation | Â | Â | Â | Â |
 Yes | 240(14.9%) | 41(16.0%) | 199(14.7%) | 0.614 |
 No | 1368(85.1%) | 216(84.0%) | 1152(85.3%) |  |
Electromagnetic radiation | Â | Â | Â | Â |
 Yes | 128(8.0%) | 22(8.6%) | 106(7.8%) | 0.698 |
 No | 1480(92.0%) | 235(91.4%) | 1245(92.2%) |  |
Ionizing radiation | Â | Â | Â | Â |
 Yes | 253(15.7%) | 43(16.7%) | 210(15.5%) | 0.632 |
 No | 1355(84.3%) | 214(83.3%) | 1141(84.5%) |  |
Monthly income (yuan) | Â | Â | Â | Â |
 < 10,000 | 430(26.7%) | 44(17.1%) | 386(28.6%) | < 0.001a |
 10,000–12,000 | 486(30.2%) | 74(28.8%) | 412(30.5%) |  |
 > 12,000 | 692(43.0%) | 139(54.1%) | 553(40.9%) |  |
Smoking | Â | Â | Â | Â |
 Yes | 443(27.5%) | 105(40.9%) | 338(25.0%) | < 0.001 |
 No | 1165(72.5%) | 152(59.1%) | 1013(75.0%) |  |
Drinking | Â | Â | Â | Â |
 Yes | 997(62.0%) | 178(69.3%) | 819(60.6%) | 0.009 |
 No | 611(38.0%) | 79(30.7%) | 532(39.4%) |  |