Table 4.
Logistic regression analysis showing the association between vegetarian diet and varicose veins stratified by sex.
| Variables | Men | Women | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | P-value | OR | 95% CI | P-value | |
| Vegetarian (ref: No) | ||||||
| Yes | 1.453 | 1.069–1.976 | 0.0170 | 0.861 | 0.725–1.023 | 0.0891 |
| Age (years) | 1.006 | 0.996–1.016 | 0.2615 | 1.006 | 0.999–1.013 | 0.1055 |
| Smoking (ref: No) | ||||||
| Yes | 0.815 | 0.666–0.998 | 0.0479 | 0.739 | 0.549–0.995 | 0.0465 |
| Drinking (ref: No) | ||||||
| Yes | 1.023 | 0.787–1.331 | 0.8624 | 0.876 | 0.592–1.296 | 0.5069 |
| Exercise (ref: No) | ||||||
| Yes | 0.907 | 0.740–1.112 | 0.3472 | 0.897 | 0.797–1.011 | 0.0751 |
| BMI (ref: Normal) | ||||||
| Underweight | 0.901 | 0.376–2.163 | 0.8163 | 0.668 | 0.474–0.940 | 0.0206 |
| Overweight | 0.970 | 0.781–1.207 | 0.7874 | 1.026 | 0.896–1.175 | 0.7096 |
| Obese | 0.820 | 0.634–1.059 | 0.1287 | 0.985 | 0.834–1.165 | 0.8633 |
| Education level (ref: Elementary and below) | ||||||
| Junior and Senior High School | 0.902 | 0.513–1.587 | 0.7214 | 1.437 | 1.115–1.853 | 0.0051 |
| University and above | 1.103 | 0.629–1.933 | 0.7317 | 1.578 | 1.214–2.052 | 0.0007 |
| Job type (ref: Non-prolonged standing) | ||||||
| Prolonged standing | 1.317 | 1.074–1.615 | 0.0081 | 1.202 | 1.073–1.348 | 0.0016 |
| Systolic blood pressure (mmHg) | 1.001 | 0.992–1.011 | 0.7726 | 0.993 | 0.988–0.999 | 0.0193 |
| Diastolic blood pressure (mmHg) | 0.986 | 0.973–0.999 | 0.0358 | 0.999 | 0.990–1.007 | 0.7483 |
OR: odds ratio, CI: confidence interval, BMI: body mass index.