From: Reproductive factors and subsequent pregnancy outcomes in patients with prior pregnancy loss
Variables | Number (n) | Â | Variables | Number (n) |
---|---|---|---|---|
Age, years | 30.51 ± 4.41 |  | Live birth |  |
Age, years | Â | Â | No | 1555 (79.54%) |
< 25 | 106 (5.42%) |  | Yes | 400 (20.46%) |
25~ | 769 (39.34%) | Â | Delivery method | Â |
30~ | 753 (38.52%) | Â | Vaginal delivery | 268 (67.09%) |
35~ | 327 (16.73%) | Â | Caesarean section | 132 (32.91%) |
First pregnancy age | 26.41 ± 3.74 |  | Birth defects |  |
< 25 | 543 (28.30%) |  | No | 1882 (96.27%) |
25~ | 1046 (54.51%) | Â | Yes | 73 (3.73%) |
30~ | 284 (14.80%) | Â | Ectopic pregnancy | Â |
35~ | 46 (2.40%) | Â | No | 1864 (95.35%) |
BMI, kg/m2 | 22.39 ± 3.24 |  | Yes | 91 (4.65%) |
BMI, kg/m2 | Â | Â | Hydatidiform mole | Â |
< 18.5 | 155 (8.07%) |  | No | 1935 (98.98%) |
18.5~ | 1264 (65.80%) | Â | Yes | 20 (1.02%) |
24~ | 395 (20.56%) |  | Menarche age | 13.54 ± 1.29 |
28~ | 107 (5.57%) | Â | Menstrual cycle | Â |
Total pregnancy numbers | 2.36 ± 1.26 |  | Regular | 1636 (83.68%) |
1 | 531 (27.16%) | Â | Irregular | 319 (16.32%) |
2 | 701 (35.86%) | Â | Dysmenorrhea | Â |
3 | 414 (21.18%) | Â | no | 760 (38.87%) |
4 | 184 (9.41%) | Â | mild | 885 (45.27%) |
≥ 5 | 125 (6.39%) |  | moderate | 216 (11.05%) |
Pregnancy loss numbers | 1.89 ± 1.00 |  | severe | 94 (4.81%) |
1 | 799 (40.87%) | Â | previous pelvic surgery | Â |
2 | 750 (38.36%) | Â | No | 1693 (86.60%) |
3 | 278 (14.22%) | Â | Yes | 262 (13.40%) |
≥ 4 | 128 (6.55%) |  | Degree of education |  |
Induced abortion | Â | Â | Primary school degree | 57 (2.92%) |
0 | 1727 (88.34%) | Â | High school degree | 606 (31.00%) |
1 | 179 (9.16%) | Â | A college degree | 1236 (63.22%) |
≥ 2 | 49 (2.51%) |  | Graduate degree | 56 (2.86%) |
Pregnancy loss type | Â | Â | Ethnic | Â |
Primary | 1531 (78.31%) | Â | Han | 1763 (90.18%) |
Secondary | 424 (21.69%) | Â | Hui | 110 (5.63%) |
 |  |  | Zang | 36 (1.84%) |
 |  |  | others | 46 (2.35%) |