Table 1.

Maternal and Offspring Characteristics According to Hypertension Status of the Mother’s Pregnancy

Hypertension StatusNo HypertensionAny HypertensionGestational HypertensionTerm PreeclampsiaPreterm Preeclampsia
No. of Participants15 07270633634327
No. of Observations18 73286441142231
Maternal characteristics
Age at delivery, y25.7 (5.4)26.7 (6.0)27.5 (6.3)26.0 (5.7)25.6 (5.2)
Parity at delivery, %
 037.449.640.857.163.0
 133.124.426.822.418.5
 ≥229.626.132.420.418.5
Body mass index, kg/m2*24.1 (3.9)26.6 (5.2)26.9 (5.2)26.4 (5.2)25.4 (4.9)
Weight, kg*65.7 (11.2)72.9 (15.0)73.9 (14.7)72.3 (15.4)68.3 (13.5)
Current daily smokers, %*39.322.723.622.99.1
Education, %*
 ≤9 y51.450.354.047.536.4
 10–12 y36.236.935.437.350.0
 >12 y12.312.910.515.113.6
Offspring characteristics
 Male attendants, %44.343.341.745.240.7
 Female attendants, %55.756.758.354.859.3
Gestational age, %
 <34 wk0.91.20.30.025.9
 34–36 wk3.04.02.10.074.1
 ≥37 wk96.194.897.5100.00.0
Infant birth length, cm50.8 (2.2)50.6 (2.8)51.1 (2.3)50.4 (2.6)44.9 (3.8)
Birth weight, g3535 (529)3432 (669)3573 (558)3399 (651)2094 (629)
Head circumference at birth, cm35.2 (1.5)35.1 (1.8)35.2 (1.6)35.2 (1.6)31.3 (3.4)
Age at follow-up, y28.9 (6.2)28.4 (6.1)28.0 (5.8)28.8 (6.3)29.1 (6.8)
Current daily smokers, %*21.720.921.120.820.0
  • The values are given as mean (SD) unless otherwise noted.

  • * As recorded in the HUNT study (Nord-Trøndelag Health study), maternal characteristics were collected from the earliest HUNT examination in which the mother participated.