Variables | Reference value | B value | SE | Wald | P value | OR | 95% CI | |
---|---|---|---|---|---|---|---|---|
 |  |  |  |  |  |  | Lower limit | Upper limit |
Education level | High | Â | Â | Â | Â | Â | Â | Â |
Primary school or below | school and above | Â | Â | Â | Â | Â | Â | Â |
 |  | −1.793 | 0.290 | 36.19 | 0.000 | 0.166 | 0.09 | 0.29 |
Primary school |  | −1.399 | 0.293 | 22.80 | 0.000 | 0.247 | 0.14 | 0.44 |
Middle school |  | −1.081 | 0.291 | 13.97 | 0.000 | 0.337 | 0.19 | 0.60 |
Previous occupation | Â | Â | Â | Â | Â | Â | Â | Â |
Administrative/ | No work | 0.903 | 0.297 | 9.24 | 0.002 | 2.466 | 1.38 | 4.41 |
Technical staff | Â | Â | Â | Â | Â | Â | Â | Â |
Factory workers | Â | 0.829 | 0.266 | 9.74 | 0.002 | 2.292 | 1.36 | 3.86 |
Migrant workers | Â | 1.349 | 0.370 | 13.30 | 0.000 | 3.852 | 1.87 | 7.95 |
Farmers | Â | 0.751 | 0.237 | 10.07 | 0.002 | 2.119 | 1.33 | 3.37 |
Residence | Â | Â | Â | Â | Â | Â | Â | Â |
Rural | Urban | −1.260 | 0.198 | 40.42 | 0.000 | 3.524 | 2.39 | 5.20 |