Table 3.
Logistic regression analysis showing the association between sex and varicose veins stratified by vegetarian diets.
| Variables | Non-vegetarian | Vegetarian | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | P-value | OR | 95% CI | P-value | |
| Gender (ref: Men) | ||||||
| Women | 3.674 | 3.197–4.223 | <0.0001 | 1.877 | 1.270–2.774 | 0.0016 |
| Age (years) | 1.007 | 1.001–1.013 | 0.0308 | 1.002 | 0.984–1.020 | 0.8467 |
| Smoking (ref: No) | ||||||
| Yes | 0.837 | 0.704–0.995 | 0.0434 | 0.441 | 0.243–0.799 | 0.0070 |
| Drinking (ref: No) | ||||||
| Yes | 0.948 | 0.756–1.189 | 0.6443 | 1.254 | 0.578–2.722 | 0.5670 |
| Exercise (ref: No) | ||||||
| Yes | 0.898 | 0.805–1.001 | 0.0519 | 0.939 | 0.690–1.278 | 0.6881 |
| BMI (ref: Normal) | ||||||
| Underweight | 0.694 | 0.491–0.982 | 0.0392 | 0.677 | 0.292–1.570 | 0.3632 |
| Overweight | 0.988 | 0.875–1.115 | 0.8463 | 1.308 | 0.917–1.866 | 0.1387 |
| Obese | 0.906 | 0.782–1.050 | 0.1881 | 1.149 | 0.751–1.758 | 0.5215 |
| Education level (ref: Elementary and below) | ||||||
| Junior and Senior High School | 1.350 | 1.053–1.729 | 0.0178 | 1.243 | 0.626–2.469 | 0.5341 |
| University and above | 1.456 | 1.129–1.877 | 0.0038 | 1.961 | 0.967–3.977 | 0.0621 |
| Job type (ref: Non-prolonged standing) | ||||||
| Prolonged standing | 1.229 | 1.106–1.364 | 0.0001 | 1.211 | 0.886–1.657 | 0.2300 |
| Systolic blood pressure (mmHg) | 0.994 | 0.989–0.999 | 0.0174 | 1.008 | 0.994–1.022 | 0.2585 |
| Diastolic blood pressure (mmHg) | 0.999 | 0.991–1.007 | 0.7936 | 0.963 | 0.943–0.984 | 0.0006 |
OR: odds ratio, CI: confidence interval, BMI: body mass index.