Characteristic
White (N=127762)
Black
Black
South Asian
South Asian
East Asian
East Asian
Mixed
Mixed
(N=25749) P-value (N=7834) P-value (N=3218) P-value (N=4403) P-value
Hypertensive disease
  Total PE 2708 (2.1) 1228 (4.8) <0.001 185 (2.4) 0.162 63 (2.0) 0.570 88 (2.0) 0.855
PE at <37 weeks 618 (0.5) 388 (1.5) <0.001 65 (0.8) <0.001 13 (0.4) 0.519 21 (0.5) 0.949
  GH 3135 (2.5) 862 (3.3) <0.001 179 (2.3) 0.367 61 (1.9) 0.049 107 (2.4) 0.960
Age (years) 31.2 (26.8, 35.0) 30.6 (26.5, 34.9) <0.001 31.5 (28.1, 34.9) <0.001 32.6 (29.1, 36.1) <0.001 30.5 (25.5, 34.6) <0.001
Height (cm) 165 (161, 170) 165 (160, 169) <0.001 160 (155, 163) <0.001 160 (156, 164) <0.001 164 (160, 169) <0.001
Weight (kg) 67.0 (59.7, 77.0) 73.5 (64.0, 85.0) <0.001 61.0 (54.6, 70.0) <0.001 57.0 (52.0, 63.8) <0.001 66.0 (59.0, 76.0) <0.001
Conception by IVF 3642 (2.9) 265 (1.0) <0.001 273 (3.5) 0.001 110 (3.4) 0.064 93 (2.1) 0.004
Conception after ovulation drugs 1360 (1.1) 170 (0.7) <0.001 84 (1.1) 0.993 29 (0.9) 0.420 23 (0.5) <0.001
Smoking 13855 (10.8) 1020 (4.0) <0.001 90 (1.1) <0.001 44 (1.4) <0.001 432 (9.8) 0.032
Chronic hypertension 1182 (0.9) 891 (3.5) <0.001 101 (1.3) 0.002 20 (0.6) 0.091 44 (1.0) 0.671
Diabetes mellitus Type 1 622 (0.5) 62 (0.2) <0.001 21 (0.3) 0.008 5 (0.2) 0.010 15 (0.3) 0.205
Diabetes mellitus Type 2 541 (0.4) 519 (2.0) <0.001 200 (2.6) <0.001 37 (1.1) <0.001 33 (0.7) 0.002
SLE/APS 262 (0.2) 78 (0.3) 0.003 27 (0.3) 0.013 4 (0.1) 0.420 8 (0.2) 0.867
Family history of PE 5887 (4.6) 980 (3.8) <0.001 232 (3.0) <0.001 54 (1.7) <0.001 191 (4.3) 0.421
Nulliparous 61899 (48.4) 9653 (37.5) <0.001 3634 (46.4) <0.001 1622 (50.4) 0.0297 2106 (47.8) 0.429
Parous 65863 (51.6) 16096 (62.5) 4200 (53.6) 1596 (49.6) 2297 (52.2)
Parous, previous PE 3829 (3.0) 1208 (4.7) <0.001 229 (2.9) 0.735 46 (1.4) <0.001 113 (2.6) 0.108
Parous, previous SGA 7530 (5.9) 2830 (11.0) <0.001 1032 (13.2) <0.001 291 (9.0) <0.001 390 (8.9) <0.001