Table 1.
Baseline maternal characteristics of the first-time mothers in the IA and non-IA groups.
| Variable | Non-IA group (N = 2875) | IA group (N = 809) | P |
|---|---|---|---|
| Age,mean(SD) | 28.61 (4.01) | 29.38 (4.62) | <0.001 |
| BMI (kg/m2) | 20.66 (3.17) | 20.86 (3.24) | 0.111 |
| Health insurance | <0.001 | ||
| Care for urban employees | 1952 (67.90) | 478 (59.08) | |
| Free medical service | 72 (2.50) | 21 (2.60) | |
| Full-cost | 851 (29.60) | 310 (38.32) | |
| Occupation | <0.001 | ||
| Professional | 1337 (46.50) | 316 (39.06) | |
| Business | 282 (9.81) | 101 (12.48) | |
| Housewife | 320 (11.13) | 115 (14.42) | |
| Others | 936 (32.56) | 277 (34.24) | |
| Gravidity | <0.001 | ||
| 1 | 2449 (85.18) | 0 (0.00) | |
| 2 | 307 (10.68) | 508 (62.79) | |
| ≧3 | 119 (4.14) | 301 (37.21) | |
| Education | <0.001 | ||
| Less then high school | 377 (13.11) | 148 (18.29) | |
| High school | 344 (11.97) | 138 (17.06) | |
| Cllege | 2154 (74.92) | 523 (64.65) | |
| Gestational hypertension | 0.704 | ||
| No | 2771 (96.38) | 782 (96.66) | |
| Yes | 104 (3.62) | 27 (3.34) | |
| Caesarean section | 0.099 | ||
| No | 2034 (70.75) | 548 (67.74) | |
| Yes | 841 (29.25) | 261 (32.26) |
Abbreviation: BMI, body mass index; IA, induced abortion.