Table 1.
Baseline characteristics for Taiwanese adult workers not fulfilling metabolic syndrome (MetS) criteria initially
| 2002 baseline data, divided by MetS outcome in 2007** | ||||
|---|---|---|---|---|
| Variable* | Overall N = 1384 | Without MetS outcome | With MetS outcome | P |
| n = 1209 | n = 175 | |||
| Age (years) | 32.3 ± 6.5 | 32.1 ± 6.5 | 33.3 ± 6.6 | 0.04 |
| Body mass index (kg/m2) | 23.0 ± 3.0 | 22.6 ± 2.9 | 25.8 ± 2.5 | <0.01 |
| Waist (cm) | 75.6 ± 8.6 | 74.4 ± 8.2 | 83.3 ± 7.4 | <0.01 |
| Systolic blood pressure (mmHg) | 117.0 ± 14.3 | 116.0 ± 14.1 | 124.2 ± 14.2 | <0.01 |
| Diastolic blood pressure(mmHg) | 71.7 ± 9.2 | 71.0 ± 9.0 | 76.4 ± 9.0 | <0.01 |
| Fasting blood sugar (mg/dl) | 94.3 ± 13.2 | 93.7 ± 12.0 | 97.8 ± 19 6 | <0.01 |
| Triglyceride (mg/dl) | 102.5 ± 78.0 | 97.3 ± 77.3 | 137.9 ± 73.3 | <0.01 |
| HDL cholesterol (mg/dl) | 50.5 ± 11.8 | 51.2 ± 11.7 | 46.0 ± 12.0 | <0.01 |
| Alanine aminotransferase (U/l) | 27.2 ± 26.6 | 25.5 ± 25.8 | 38.5 ± 29.3 | <0.01 |
| γ-Glutamyl transferase (U/l) | 33.4 ± 24.7 | 31.0 ± 22.2 | 49.7 ± 33.3 | <0.01 |
| Uric acid (mg/dl) | 6.6 ± 1.6 | 6.5 ± 1.6 | 7.2 ± 1.5 | <0.01 |
| Insulin (μU/ml) | 8.2 ± 5.7 | 7.8 ± 5.0 | 11.1 ± 8.9 | <0.01 |
| Adults having MetS component (count ≤ 2) | 811 (58.6%) | 657 (54.3%) | 154 (88.0%) | <0.01 |
| Male gender | 996 (72.0%) | 855 (70.7%) | 141(80.6%) | <0.01 |
| Ever been a smoker (≥ 6 cigarettes/day for ≥1 year) | 361 (26.1%) | 312 (25.8%) | 49 (28.0%) | 0.55 |
| Regular alcohol consumption (≥ 1 day/week) | 100 (7.2%) | 77 (6.4%) | 23 (13.1%) | 0.01 |
| Taking exercise ≥ 3 days/week) | 444 (32.1%) | 389 (32.2%) | 55 (31.4%) | 0.84 |
| Having snacks before sleeping (≥ 3 days/week) | 644 (46.5%) | 568 (47.0%) | 76 (43.4%) | 0.38 |
| Having snacks between meals (≥ 3 days/week) | 546 (39.5%) | 473 (39.1%) | 73 (41.7%) | 0.51 |
| HBV carrier | 256 (18.5%) | 221 (18.3%) | 35 (20.0%) | 0.59 |
| HCV carrier | 16 (1.2%) | 13 (1.1%) | 3 (1.7%) | 0.53 |
| Sonographic fatty liver | 349 (27.4%) | 278 (23.0%) | 101 (57.7%) | <0.01 |
* The upper rows are means and standard deviation (mean ± SD), and the lower rows are proportions (numbers and proportions,%). Abbreviations: HDL cholesterol, high-density lipoprotein cholesterol.
** t-tests for continual variables between groups with/without MetS outcome; χ2 tests were conducted for categorical variables between groups with/without MetS outcome