Characteristics | VD | CDMI | CDMR | UCD | P Value |
---|---|---|---|---|---|
Maternal characteristics | |||||
 Maternal age(years) | 25.95 ± 3.02 | 27.41 ± 3.83 | 26.48 ± 3.73 | 27.15 ± 2.87 | <0.001 |
 Gestational age(weeks) | 39.20 ± 1.22 | 39.12 ± 1.37 | 39.29 ± 1.06 | 39.15 ± 1.18 | 0.191 |
 Gravidity | 1.55 ± 0.80 | 1.83 ± 1.04 | 1.65 ± 0.86 | 1.72 ± 0.83 | <0.001 |
 Pre-pregnancy BMI(kg/m2) | 19.96 ± 2.32 | 20.73 ± 2.75 | 20.44 ± 2.66 | 20.88 ± 2.71 | <0.001 |
 Previous adverse pregnant outcome | 638(61.9%) | 187(54.0%) | 317(57.7%) | 24(51.1%) | 0.032 |
 Pregnancy-specific anxiety score in 1st trimester | 20.26 ± 4.82 | 19.80 ± 4.26 | 20.55 ± 5.13 | 19.55 ± 3.72 | 0.191 |
 Pregnancy-specific anxiety score in 2nd trimester | 19.61 ± 4.44 | 19.91 ± 4.62 | 19.92 ± 4.90 | 19.27 ± 3.84 | 0.459 |
 Pregnancy-specific anxiety score in 3rd trimester Infants’ characteristics | 18.72 ± 4.00 | 18.96 ± 4.30 | 19.17 ± 4.63 | 18.76 ± 3.43 | 0.245 |
Gender | Â | Â | Â | Â | 0.174 |
 Male | 544(52.8%) | 163(46.8%) | 281(50.9%) | 28(59.6%) |  |
 Female | 487(47.2%) | 185(53.2%) | 271(49.1%) | 19(40.4%) | |
Birth weight(g) | 3304.81 ± 379.63 | 3443.95 ± 467.26 | 3417.05 ± 397.17 | 3481.70 ± 350.30 | <0.001 |
Birth height(cm) | 50.13 ± 1.71 | 50.03 ± 1.76 | 49.95 ± 1.51 | 50.70 ± 1.54 | 0.013 |
Head circumference(cm) | 33.82 ± 1.30 | 34.33 ± 1.73 | 34.20 ± 1.46 | 34.14 ± 2.04 | <0.001 |
Placental size(cm3) | 685.79 ± 180.12 | 815.70 ± 224.56 | 799.87 ± 207.96 | 754.31 ± 230.07 | <0.001 |
Apgar score | |||||
 1-Min | 9.95 ± 0.46 | 9.94 ± 0.53 | 9.97 ± 0.42 | 9.91 ± 0.46 | 0.784 |
 5-Min | 9.98 ± 0.23 | 9.99 ± 0.16 | 10.00 ± 0.04 | 10.00 ± 0.00 | 0.219 |