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Table 2 Patient and outcome characteristics in the four outcome groups

From: Development of a biophysical screening model for gestational hypertensive diseases

  Normotensive Pregnancy (NP) (n = 897) Early-onset Preeclampsia (EPE) (n = 8) Late-onset Preeclampsia (LPE) (n = 29) Gestational Hypertension (GH) (n = 35)
Characteristics at inclusion
 Maternal age, years 30 (27–33) 30 (25–36) 30 (27–34) 30 (27–33)
 Pregestational maternal weight, kg 64 (58–74) 76 (64–84)* 66 (62–82) 65 (59–79)
 Pregestational maternal height, cm 166 (161–170) 166 (163–170) 166 (165–170) 167 (162–170)
 Pregestational BMI, kg/m2 23,3 (21–26,8) 27,3 (23,3-29,8) 24,1 (22,4-30,2) 23,6 (22–27,9)
Gestational age at assessment, weeks+days
 First trimester 12w2d (11w5d-12w5d) 13w (12w3d-13w2d)* 11w5d (11w1d-12w5d)* 12w2d (11w6d-12w5d)
 Second trimester 20w2d (19w6d-20w5d) 21w (20w3d-26w3d)* 20w5d (20w1d-21w4d)* 20w2d (19w5d-20w6d)
Medical history
 Diabetes Mellitus 116 (12,9%) 2 (25%) 6 (20,7%) 6 (17,1%)
 Thrombophilia 33 (3,7%) 1 (12,5%) 1 (3,4%) 2 (5,7%)
 Allergy 177 (19,7%) 0 (0%) 4 (13,8%) 13 (37,1%)*
Obstetric history
 Intra-Uterine Death 15 (1,7%) 0 (0%) 1 (3,4%) 1 (2,9%)
 Intra-Uterine Growth Restriction 7 (0,8%) 0 (0%) 0 (0%) 1 (2,9%)
 Nulliparity 472 (52,6%) 4 (50%) 8 (27,6%)* 14 (40%)
Hypertension
 Family history 41 (4,6%) 1 (12,5%) 1 (3,4%) 2 (5,7%)
 Previous pregnancy 55 (6,1%) 2 (25%) 4 (13,8%) 10 (28,6%)*
Outcome characteristics
 Birth weight, g 3425 (3145–3734) 1300 (572–1712)* 3230 (2690–3656)* 3405 (3040–3720)
 Birth weight, percentile 57,5 (33–77,5) 7,5 (3,8-48,8) 63,8 (28,1-79,4) 52,5 (23,5-82,5)
 Gestational age at delivery, weeks + days 39w5d (38w5d-40w3d) 31w5d (27w-32w5d)* 37w5d (36w5d-39w6d)* 39w3d (38w5d-40w5d)
  1. Data are presented as median (IQR) or n (%)
  2. *p<0,05 was considered significant different from normotensive pregnancy (NP)