Table 1

Characteristics of the development and validation cohort at first antenatal visit stratified by GH

Development cohortValidation cohort
Variable Mean (SD), resp. N (%)GH (Yes) N=261GH (No) N=2268OR (95% CI)p ValueGH (Yes) N=42GH (No) N=605OR (95% CI)p Value
Age (years)28.9 (5.9)28.0 (5.8)1.03 (1.01 to 1.05)0.01329.8 (5.6)28.2 (5.0)1.06 (0.99 to 1.13)0.053
Height (cm)159.9 (6.7)160.6 (7.4)0.98 (0.97 to 1.01)0.19161.4 (9.5)161.1 (7.5)1.01 (0.97 to 1.05)0.757
Weight (kg)73.3 (19.0)66.2 (13.2)1.03 (1.02 to 1.04)<0.00174.0 (14.8)65.9 (7.5)1.05 (1.02 to 1.07)<0.001
Systolic BP (mmHg)116.0 (15.2)108.7 (10.8)1.05 (1.04 to 0.06)<0.001115.6 (14.5)111.6 (12.2)1.02 (1.00 to 1.05)0.046
Diastolic BP (mmHg)71.9 (11.6)66.2 (9.1)1.06 (1.05 to 1.08)<0.00175.2 (12.6)69.1 (10.5)1.05 (1.02 to 1.08)<0.001
Gestational age (weeks)21.9 (6.1)20.5 (6.9)1.03 (1.01 to 1.05)0.00310.9 (2.9)11.4 (2.9)0.95 (0.85 to 1.05) 0.298
Employed243 (93.1%)2092 (92.2%)1.14 (0.69 to 1.88)0.6237 (88.1%)523 (86.4%)0.86 (0.33 to 2.26)0.76
Married194 (74.3%)1775 (78.3%)0.80 (0.60 to 1.08)0.1538 (90.5%)501 (82.8%)1.97 (0.69 to 5.65)0.21
Educational level
 None30(11.8%)230 (10.4%)Reference4 (9.5%)60 (9.9%)Reference
 Primary55 (21.7%)424 (19.1%)0.84(0.47 to 1.47)0.534 (9.5%)75(12.4%)1.89 (0.41 to 8.75)0.42
 Junior High School101 (39.9%)999 (44.9%)0.83 (0.50 to 1.38)0.4720 (47.6%)260 (43.0%)1.51 (0.33 to 6.97)0.59
 Senior High School42 (16.6%)410 (18.4%)0.65 (0.41 to 1.03)0.0711 (26.2%)125 (20.7%)2.18 (0.63 to 7.52)0.217
Tertiary25 (9.9%)160 (7.2%)0.66(0.39 to 1.11)0.123 (7.1%)85 (14.0%)2.49 (0.68 to 9.20)0.17
Family history of hypertension (parents)70 (26.8%)392 (17.2%)1.75 (1.29 to 2.34)0.0015 (29.2%)22 (3.6%)3.45 (1.24 to 9.62)0.018
Previous history of GH40 (15.3%)23 (1.0%)17.8 (10.4 to 30.2)<0.0011 (2.4%)20 (3.3%)0.72 (0.09 to 5.49)0.749
  • GH, gestational hypertension.