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. 2018 Jan 19;46(4):1496–1504. doi: 10.1177/0300060517727683

Table 2.

Demographic and gestational characteristics of the normotensive participants.

Characteristic Singleton pregnancy n = 69 Twin pregnancy n = 32
DD (n = 20) MD (n = 12)
Age, years 35.21±4.72 36.35±3.95 34.25±4.27
BMI before pregnancy, kg/m2 21.73±4.05 23.48±4.93 20.55±2.15
Gestational age at delivery, median (range) 38 weeks, 4 days (31 weeks, 1 days–41 weeks, 1 day) 37 weeks, 0 days*(35 weeks, 2 days–37 weeks, 3 days) 36 weeks, 5 days*(29 weeks, 0 days–37 weeks,3 days)
Birth weight, g 2923±521 2397±279** 2156±374**
SD value of the birth weight Parity 0.12±1.23 −0.56±0.78** −0.98±0.77**
 Primipara 43 (62.3) 11 (55.0) 6 (50.0)
 Multipara 26 (37.7) 9 (45.0) 6 (50.0)

Values are shown as mean ± SD, or n (%)

DD: dichorionic-diamniotic; MD: monochorionic-diamniotic; SD: standard deviation, BMI, body mass index

*P<0.05 Steel-Dwass test

**P<0.05 Tukey-Kramar test