Table 3 The clinical data of 492 twin pregnancies with NIPT results indicating low risk
Characteristic | Cases (n, %) |
|---|---|
Age | |
23–35 | 398(80.9%) |
35–53 | 94(19.1%) |
Chorionicity | |
DCDA | 425(86.4%) |
MCDA | 65(13.2%) |
MCMA | 2(0.4%) |
Types of pregnancy | |
artificially assisted reproduction | 418(85.0%) |
natural pregnancy | 74(15.0%) |
Pregnancy outcomes | |
twin live births | 452(91.9%) |
embryo arrest/live birth | 6(1.2%) |
stillborn/live birth | 7(1.4%) |
intrauterine fetal reduction/live birth | 3(0.6%) |
twin termination of pregnancy | 1(0.2%) |
twin spontaneous abortion | 9(1.8%) |
twin pregnancies on-going | 14(2.9%) |
Ultrasound manifestations | |
USG findings in one of the twins | 144(29.3%) |
USG findings in both of the twins | 50(10.1%) |
Normal ultrasound in both of the twins | 298(60.6%) |