Study population
A total of 237 twin pregnancies who had normal NIPT results and
delivered ≥28 weeks were included in study period. 5 cases of
intrauterine death of one fetus, 8 structural abnormality in one or both
foetuses were excluded from this study. The proportions of DC and MC
twins were 77.6% (174) and 22.3% (50) respectively. Compared to MC
group, DC group had higher maternal age (p =0.006), longer
gestational weeks at delivery (p <0.001), larger birth
weight of the foetuses (p =0.001) and higher percentage of
pregnancies conceived by Assisted Reproductive Technology
(p <0.001). The incidence of preterm delivery was higher
in MC group (p =0.004). There was no difference in other pregnancy
complications such as gestational hypertension, gestational diabetes or
thyroid diseases. (Table 1).