Table 6 Pregnant women’s personal situation, life and surrounding environmental conditions during pregnancy
Index | Â | Number of cases | Proportion(%) | |
|---|---|---|---|---|
Pregnant women’s age | 18- | 1 | 0.5 | |
25- | 184 | 92.0 | ||
35- | 15 | 7.5 | ||
Pregnant women’s degree | Primary school and below | 3 | 1.5 | |
Middle school | 31 | 15.5 | ||
College or university | 166 | 83.0 | ||
Number of delivery of pregnant women (including this time) | 1 | 131 | 65.5 | |
2 | 63 | 31.5 | ||
3 | 6 | 3.0 | ||
Biological sample collection period | Non -heating period | 100 | 50.0 | |
Heating period | 100 | 50.0 | ||
Whether the housing is decorated within one year before childbirth | No | 180 | 90.0 | |
Yes | 20 | 10.0 | ||
The ventilation of the house where the house lives during pregnancy | Very good | 151 | 75.5 | |
Good | 49 | 24.5 | ||
Poor | 0 | 0 | ||
The distance between the place of residence is from the road | Beside the road(≤400 m) | 47 | 23.5 | |
Closer(400-800Â m) | 132 | 66.0 | ||
Far away(≥800 m) | 21 | 10.5 | ||
Pregnancy heating method | Heating | 196 | 98.0 | |
Stove | 3 | 1.5 | ||
Electricity | 1 | 0.5 | ||
Whether there are tapestry in housing during pregnancy | No | 171 | 85.5 | Â |
Yes | 29 | 14.5 | Â | |
Eat barbecue and fried food during pregnancy | No | 183 | 91.5 | Â |
Yes | 17 | 8.5 | Â | |
Husband smoke | No | 137 | 68.5 | Â |
Yes | 63 | 31.5 | Â | |
Gender of Newborn | Male | 102 | 51.0 | |
Female | 98 | 49.0 | ||