Table 1 The characteristics of risk factors
From: Risk factors for missed abortion: retrospective analysis of a single institution’s experience
Variables | Count(%) | Variables | Count(%) |
|---|---|---|---|
Age(years) | History of medication abortion | ||
30 | 156(50.8%) | Yes | 6(2.0%) |
≥ 30 | 151(49.2%) | ||
Gravidity(times) | History of midtrimester induction | ||
1 | 118(38.4%) | Yes | 5(1.6%) |
2 | 79(25.7%) | ||
3 | 53(17.3%) | History of ectopic pregnancy | |
4 | 36(11.7%) | Yes | 13(4.2%) |
5 | 13(4.2%) | ||
6 | 7(2.3%) | Smoking | |
7 | 1(0.3%) | Yes | 1(0.1%) |
Parity(times) | |||
0 | 218(71.0%) | Alcohol consumption | |
1 | 83(27.0%) | Yes | 1(0.1%) |
2 | 6(2.0%) | ||
History of vaginal delivery | Other uterine operations | ||
Yes | 34(11.1%) | Yes | 7(2.3%) |
History of cesarean delivery | IVF | ||
Yes | 56(18.2%) | Yes | 9(2.9%) |
History of recurrent abortion | BMI(Kg/m2) | ||
Yes | 8(2.6%) | ≤ 24 | 258(84%) |
> 24 | 49(16%) | ||
History of induced abortion | mGSD-CRL(mm) | ||
Yes | 120(39.1%) | < 11.7 | 91(29.6%) |
11.7 ≤ mGSD-CRL ≤ 20.0 | 158(51.5%) | ||
> 20.0 | 58(18.9%) |