| β | Se | Wald | P | OR | 95% CI | |
---|---|---|---|---|---|---|---|
lower | upper | ||||||
< 30 years group | |||||||
Work intensity | 0.329 | 0.091 | 13.242 | < 0.001 | 1.390 | 1.164 | 1.660 |
Duration of the same work posture (hours) | Â | 9.144 | 0.027 | Â | Â | Â | |
  < 1 |  |  |  |  | 1.000 |  |  |
 1- | 2.527 | 1.049 | 5.805 | 0.016 | 12.522 | 1.602 | 97.850 |
 2- | 2.169 | 1.078 | 4.050 | 0.044 | 8.750 | 1.058 | 72.346 |
  ≥ 3 h | 1.629 | 1.038 | 2.462 | 0.117 | 5.099 | 0.666 | 39.013 |
Gender(Female) | 0.917 | 0.427 | 4.614 | 0.032 | 2.501 | 1.084 | 5.771 |
30-years group | |||||||
Housework intensity | 0.111 | 0.052 | 4.530 | 0.033 | 1.117 | 1.009 | 1.237 |
45- years group | |||||||
Place of residence | Â | Â | 8.023 | 0.018 | Â | Â | Â |
 Urban |  |  |  |  | 1.000 |  |  |
 Suburban | 0.387 | 0.239 | 2.619 | 0.106 | 1.473 | 0.921 | 2.355 |
 Rural | 0.696 | 0.246 | 8.020 | 0.005 | 2.006 | 1.239 | 3.248 |
Gender(Female) | 1.085 | 0.193 | 31.782 | < 0.001 | 2.961 | 2.030 | 4.318 |
Nature of labor | Â | Â | 7.135 | 0.028 | Â | Â | Â |
 Physical-based |  |  |  |  | 1.000 |  |  |
  Mixed | 0.067 | 0.248 | 0.072 | 0.788 | 1.069 | 0.657 | 1.739 |
  Mental-based | 0.616 | 0.243 | 6.439 | 0.011 | 1.852 | 1.151 | 2.980 |
Daily transportation tools | 6.017 | 0.049 | Â | Â | Â | ||
 Non manpower transportation tool |  |  | 1.000 |  |  | ||
 Bicycle | −0.109 | 0.217 | 0.252 | 0.615 | 0.897 | 0.586 | 1.372 |
 On foot | −0.561 | 0.233 | 5.793 | 0.016 | 0.571 | 0.361 | 0.901 |
Sleep duration per day (<7Â h/day) | 0.506 | 0.194 | 6.771 | 0.009 | 1.658 | 1.133 | 2.426 |
Vibration(Yes) | −0.563 | 0.276 | 4.156 | 0.041 | 0.570 | 0.332 | 0.979 |
≥60 years group | |||||||
Nature of labor | Â | Â | 7.872 | 0.020 | Â | Â | Â |
 Physical-based |  |  |  |  | 1.000 |  |  |
 Mental-based | 0.733 | 0.294 | 6.237 | 0.013 | 2.082 | 1.171 | 3.703 |
 Mixed | 0.667 | 0.294 | 5.153 | 0.023 | 2.948 | 1.095 | 3.464 |
Housework intensity | 0.136 | 0.054 | 6.426 | 0.011 | 1.145 | 1.031 | 1.272 |
Sleep duration per day (<7Â h/day) | 0.518 | 0.254 | 4.166 | 0.041 | 1.679 | 1.021 | 2.760 |