Table 1 Clinical characteristics of the study population with sampling weights stratified by metabolic syndrome status
From: Metabolic syndrome as an independent risk factor for glaucoma: a nationally representative study
Variables | Metabolic syndrome | p* | |
|---|---|---|---|
No | Yes | ||
Unweighted number, n | 7115 | 4384 | Â |
Male sex, % (SE) | 44.9 (0.5) | 57.1 (0.4) | < 0.001 |
Age, years | 48.5 ± 0.5 | 57.3 ± 0.4 | < 0.001 |
Body mass index, kg/m2 | 23.0 ± 0.0 | 26.5 ± 0.1 | < 0.001 |
Waist circumference, cm | 80.5 ± 0.1 | 92.3 ± 0.2 | < 0.001 |
Mean blood pressure, mmHg | 87.6 ± 0.2 | 95.6 ± 0.2 | < 0.001 |
Smoking status, % (SE) |  |  | < 0.001 |
 Non-smoker | 16.9 (0.4) | 22.3 (0.3) |  |
 Ex-smoker | 20.4 (0.4) | 27.8 (0.3) |  |
 Current smoker | 62.7 (0.7) | 49.9 (0.5) |  |
Currently drinking, % (SE) | 51.3 (0.7) | 45.5 (0.4) | < 0.001 |
Physical activity, % (SE) |  |  | < 0.001 |
 Low (< 7.5 METs-hr/day) | 48.6 (0.5) | 58.2 (0.6) |  |
 Moderate (7.5–30 METs-hr/day) | 37.3 (0.6) | 32.7 (0.4) |  |
 High (> 30 METs-hr/day) | 14.1 (0.4) | 9.2 (0.2) |  |
Monthly household income, % (SE) |  |  | < 0.001 |
 Lowest quartile | 11.7 (0.4) | 19.8 (0.4) |  |
 Second quartile | 21.6 (0.5) | 25.3 (0.4) |  |
 Third quartile | 30.6 (0.6) | 26.7 (0.4) |  |
 Highest quartile | 36.1 (1.0) | 28.2 (0.4) |  |
Education level, % (SE) |  |  | < 0.001 |
 Elementary school | 7.8 (0.3) | 20.8 (0.4) |  |
 Middle school | 6.8 (0.2) | 11.8 (0.2) |  |
 High school | 38.3 (0.6) | 35.4 (0.4) |  |
 College/University | 47.0 (0.9) | 31.9 (0.4) |  |
Glucose, mg/dL | 95.8 ± 0.2 | 115.6 ± 0.6 | < 0.001 |
Total cholesterol, mg/dL | 197.2 ± 0.6 | 189.4 ± 0.8 | < 0.001 |
Total energy intake, kcal/day | 1867.0 ± 14.1 | 1880.4 ± 19.4 | 0.556 |
Intraocular pressure, mmHg | 15.3 ± 0.1 | 15.5 ± 0.1 | < 0.001 |