- Continuous variables were presented as the mean ± standard deviation (SD) and categorical variables were presented as numbers (percentages). P < 0.05 was considered statistically significant
- MCDA normal monochorionic diamniotic twins, sFGR selective fetal growth restriction, L the larger fetus, S the smaller fetus, BMI body mass index, IVF-ET in vitro fertilization-embryo transfer
- aStudent’s t-test
- bMann–Whitney U test
- cChi-square test
- dPaired t-test
- eWilcoxon’s-sign-rank-test