| β | Se | Wald | P | OR | 95% CI | |
---|---|---|---|---|---|---|---|
lower | upper | ||||||
Males | |||||||
Age(years) |  |  | 25.211 | < 0.001 |  |  |  |
  < 30 |  |  |  |  | 1.000 |  |  |
 30- | 1.027 | 0.383 | 7.209 | 0.007 | 2.793 | 1.320 | 5.911 |
 45- | 1.496 | 0.369 | 16.401 | < 0.001 | 4.465 | 2.164 | 9.210 |
  ≥ 60 | 1.733 | 0.380 | 20.749 | < 0.001 | 5.657 | 2.684 | 12.923 |
BMI(kg/m2) | Â | Â | 4.918 | 0.178 | Â | Â | Â |
 18.5- |  |  |  |  | 1.000 |  |  |
  < 18.5 | −1.676 | 1.021 | 2.693 | 0.101 | 0.187 | 0.025 | 1.385 |
 24- | 0.152 | 0.189 | 0.649 | 0.421 | 1.164 | 0.804 | 1.687 |
  ≥ 28 | 0.388 | 0.299 | 1.679 | 0.195 | 1.474 | 0.820 | 2.649 |
Vibration(yes) | 0.471 | 0.218 | 4.689 | 0.030 | 1.603 | 1.046 | 2.450 |
Females | |||||||
Place of residence | Â | 4.958 | 0.084 | Â | Â | Â | |
 Urban |  |  |  |  | 1.000 |  |  |
 Suburban | 0.442 | 0.211 | 4.389 | 0.036 | 1.556 | 1.029 | 2.354 |
 Rural | 0.413 | 0.235 | 3.097 | 0.078 | 1.512 | 0.954 | 2.397 |
Age(years) |  |  | 46.433 | < 0.001 |  |  |  |
  < 30 |  |  |  |  | 1.000 |  |  |
 30- | 0.654 | 0.279 | 5.505 | 0.019 | 2.924 | 1.114 | 3.323 |
 45- | 1.644 | 0.273 | 36.222 | < 0.001 | 5.177 | 3.031 | 8.843 |
  ≥ 60 | 1.271 | 0.298 | 18.135 | < 0.001 | 3.565 | 2.986 | 6.399 |
Menopause(Yes) | 0.572 | 0.217 | 6.983 | 0.008 | 1.772 | 1.159 | 2.710 |
Nature of labor | Â | Â | 5.983 | 0.050 | Â | Â | Â |
 Physical-based |  |  |  |  | 1.000 |  |  |
 Mixed | 0.411 | 0.225 | 3.339 | 0.068 | 1.508 | 0.971 | 2.344 |
 Mental-based | 0.522 | 0.222 | 5.537 | 0.019 | 1.686 | 1.091 | 2.605 |
Housework intensity | 0.088 | 0.038 | 5.291 | 0.021 | 1.092 | 1.013 | 1.176 |
Daily transportation tools | Â | 10.013 | 0.007 | Â | Â | Â | |
 Non manpower transportation tool |  |  | 1.000 |  |  | ||
 Bicycle | −0.169 | 0.211 | 0.638 | 0.424 | 0.845 | 0.558 | 1.278 |
 On foot | −0.650 | 0.207 | 9.916 | 0.002 | 0.522 | 0.348 | 0.782 |
Sleep duration per day (<7Â h/day) | 0.474 | 0.187 | 6.401 | 0.011 | 1.606 | 1.113 | 2.318 |