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Table 1 Patient general characteristics of total study cohort with delivery details and stratified according to birth weight percentile category in oAGA reference group and sAGA group

From: Reduced fetal growth velocities and the association with neonatal outcomes in appropriate-for-gestational-age neonates: a retrospective cohort study

Characteristic

Total cohort AGA (n = 934)

Optimal AGA (oAGA) Bwp50–80 (n = 365)

Suboptimal AGA (sAGA) Bwp10–50 (n = 569)

P

Maternal age (years)

31.6 ± 5.1(17–55)

31.6 ± 5.1 (17–55)

31.5 ± 5.1 (17–45)

0.816

Primiparous (%)

412 (44.4%)

160 (44.2%)

252 (44.6%)

0.904

Smoking (%)

89(11.8%)

27 (9.2%)

62 (13.6%)

0.067

Height (m)

1.67 ± 0.07(1.45–1.86)

1.68 ± 0.07(1.49–1.86)

1.67 ± 0.07 (1.45–1.86)

0.362

BMI (kg/m2)

25.0 ± 5.7(15.7–48.5)

25.5 ± 5.5(16.7–48.3)

24.7 ± 5.9 (15.7–48.5)

0.164

Mode of conception

 spontaneous

775 (91.7%)

335 (91.8%)

529 (93.0%)

0.501

 Iui

13(1.5%)

4 (1.1%)

9 (1.6%)

0.536

 Icsi

25(3.0%)

8 (2.2%)

17 (3.0%)

0.462

 Ivf

19(2.2%)

9 (2.5%)

10 (1.8%)

0.454

 Ovulation induction

13(1.5%)

9 (2.5%)

4 (0.7%)

0.025

GA at birth (days)

271.5 ± 12.8(212–295)

271.0 ± 13.7(212–295)

271.8 ± 12.2(215–295)

0.350

GA <34wks (n)

23 (2.5%)

13(3.6%)

10 (1.8%)

0.088

GA 34-36wks (n)

40(4.3%)

15(4.1%)

25(4.4%)

0.870

GA >36wks (n)

871(93.3%)

337 (92.3%)

534 (93.8%)

0.423

Birth weight (g)

3191.55 ± 450.6(1353–4125)

3425.4 ± 421.6(1440–4125)

3041.5 ± 402.3 (1353–3818)

< 0.001

Induction of labour (yes)

205 (21.9%)

89 (24.4%)

116 (20.3%)

0.168

Mode of delivery

 Spontaneous vaginal

722 (77.3%)

278 (76.2%)

444 (78.0%)

0.522

 Assisted vaginal

124 (13.3%)

47 (12.9%)

77 (13.5%)

0.843

 Intrapartum caesarean

32 (3.4%)

17 (3.0%)

15 (4.1%)

0.363

 Prelabour caesarean

56 (6.0%)

25 (6.8%)

31 (5.4%)

0.399

  1. Data are expressed as mean ± standard deviation (min-max) or n (%). BMI body mass index, GA gestational age