Spontaneous abortion | ||||||
---|---|---|---|---|---|---|
No, (n, %) | Yes, (n, %) | χ2 | P-value | |||
Total subjects | 3844 | 94.3 | 234 | 5.7 | ||
Age at survey participation | 14.62 | 0.0001 | ||||
19–40 | 1341 | 96.8 | 44 | 3.2 | ||
41–60 | 1783 | 92.7 | 141 | 7.3 | ||
≥ 60 | 720 | 93.6 | 49 | 6.4 | ||
Education | 25.61 | <.0001 | ||||
Middle school | 1406 | 92.7 | 110 | 7.3 | ||
High school | 1222 | 93.1 | 91 | 6.9 | ||
College or more | 1216 | 97.4 | 33 | 2.6 | ||
Household income | 0.06 | 0.8021 | ||||
1st Quartile | 524 | 93.4 | 37 | 6.6 | ||
2nd Quartile | 958 | 94.6 | 54 | 5.3 | ||
3rd Quartile | 1143 | 94.5 | 67 | 5.5 | ||
4th Quartile | 1219 | 94.1 | 76 | 5.9 | ||
Smoking | 0.15 | 0.6946 | ||||
None | 3431 | 94.2 | 211 | 5.8 | ||
Past | 183 | 94.8 | 10 | 5.2 | ||
Current | 230 | 94.7 | 13 | 5.4 | ||
Drinking | 0.13 | 0.7124 | ||||
None | 1125 | 94.3 | 68 | 5.7 | ||
Standard | 2529 | 94.1 | 158 | 5.9 | ||
Severe | 190 | 96.0 | 8 | 4.0 | ||
Body weight | 6.15 | 0.0131 | ||||
Under weight | 236 | 96.7 | 8 | 3.3 | ||
Normal | 2536 | 94.6 | 146 | 5.4 | ||
Overweight | 916 | 93.2 | 67 | 6.8 | ||
Obesity | 156 | 92.3 | 13 | 7.7 | ||
Occupational classification | 19.35 | <.0001 | ||||
White-collared | 1350 | 96.8 | 44 | 3.2 | ||
Pink/Green-collared | 1632 | 92.9 | 124 | 7.1 | ||
Blue-collared | 862 | 92.9 | 66 | 7.1 | ||
Work schedule | 0.94 | 0.3317 | ||||
Fixed | 3230 | 94.4 | 191 | 5.6 | ||
Shift | 614 | 93.5 | 43 | 6.5 | ||
Weekly working hours | 9.08 | <.0001 | ||||
≤ 50 | 2823 | 95.1 | 145 | 4.9 | ||
51–60 | 532 | 93.3 | 38 | 6.7 | ||
61–70 | 250 | 90.9 | 25 | 9.1 | ||
> 70 | 239 | 90.2 | 26 | 9.8 |