Table 1.
Characteristics of participants according to the status of metabolic syndrome.
| Variables | Total (N = 8017) | Metabolic syndrome | P | |
|---|---|---|---|---|
| Present (n = 2381) | Absent (n = 5636) | |||
| Gender·n(%) | <0.01 | |||
| male | 4152 | 1437(34.61) | 2715(65.39) | |
| female | 3865 | 944(24.42) | 2921(75.58) | |
| Age·n(%) | <0.01 | |||
| <40 years | 3927 | 777(19.79) | 3150(80.21) | |
| 40–59 years | 3150 | 1114(35.37) | 2036(64.63) | |
| ≥60 years | 940 | 490(52.13) | 450(47.87) | |
| Education degree·n(%) | <0.01 | |||
| illiteracy or primary school | 291 | 156(53.61) | 135(46.39) | |
| middle school | 2788 | 1111(39.85) | 1677(60.15) | |
| high school or higher | 4938 | 1114(22.56) | 3824(77.44) | |
| Income·n(%) | <0.01 | |||
| ≤¥3000 | 3032 | 1050(34.63) | 1982(65.37) | |
| ¥3001–5000 | 4371 | 1162(26.58) | 3209(73.42) | |
| >¥5000 | 614 | 169(27.52) | 445(72.48) | |
| Smoking status·n(%) | <0.01 | |||
| never | 5681 | 1445(25.44) | 4236(74.56) | |
| current | 2061 | 800(37.82) | 1261(61.18) | |
| former | 275 | 136(49.45) | 139(50.55) | |
| Drinking status·n(%) | <0.01 | |||
| none | 5347 | 1456(27.23) | 3891(72.77) | |
| <1 standard quantity/day | 1204 | 390(32.39) | 814(67.61) | |
| ≥1 standard quantity/day | 1466 | 535(36.49) | 931(63.51) | |
| Salt intake·n(%) | <0.01 | |||
| low | 1719 | 457(26.59) | 1262(73.41) | |
| medium | 4106 | 1175(28.62) | 2931(71.38) | |
| high | 2192 | 749(34.17) | 1443(65.83) | |
| Physical activity·n(%) | <0.01 | |||
| very active | 4154 | 1323(31.85) | 2831(68.15) | |
| moderately active | 767 | 185(24.12) | 582(75.88) | |
| inactive | 3096 | 873(28.20) | 2223(71.80) | |
| BMI(kg/m 2 ) | 24.53 ± 3.74 | 23.16 ± 23.08 | 27.78 ± 27.65 | <0.01 |
| AIS·n(%) | <0.01 | |||
| non-insomnia(<6 points) | 6998 | 2015(28.79) | 4983(71.21) | |
| insomnia(≥6 points) | 1019 | 366(35.92) | 653(64.08) | |