Research Article

Characteristics of Serum Lipid Metabolism among Women Complicated with Hypertensive Disorders in Pregnancy: A Retrospective Cohort Study in Mainland China

Table 1

Baseline and clinical characteristics of enrolled women with HDPs.

ParametersTotal HDPs (n = 1880)PE (n = 983)GH (n = 676)CH (n = 221)

Age (years), mean ± SD32.86 ± 4.4532.72 ± 4.3432.68 ± 4.4634.02 ± 4.78<0.001
Prepregnancy BMI (kg/m2)a, mean ± SD23.85 ± 4.2523.62 ± 3.9523.38 ± 3.9126.38 ± 5.55<0.001
Antenatal BMI (kg/m2)b, mean ± SD29.03 ± 4.0829.08 ± 3.8828.58 ± 3.9630.17 ± 5.00<0.001
Educational level, n (%)<0.001
 High (bachelor or above)552 (29.36)254 (25.84)225 (33.28)73 (33.03)
 Low (high school or below)154 (8.19)74 (7.53)49 (7.25)31 (14.03)
 Unknown1174 (62.45)655 (66.63)402 (59.47)117 (52.94)
ABO, n (%)0.388
 A495 (26.33)272 (27.67)169 (25.00)54 (24.43)
 AB138 (7.34)79 (8.04)43 (6.36)16 (7.24)
 B459 (24.42)222 (22.58)177 (26.18)60 (27.15)
 O489 (26.01)247 (25.13)179 (26.48)63 (28.51)
 Unknown299 (15.90)163 (16.58)108 (15.98)28 (12.67)
Rh, n (%)0.007
 Rh (−)11 (0.59)3 (0.31)3 (0.44)5 (2.26)
 Rh (+)1598 (85.00)840 (85.45)568 (84.03)190 (85.97)
 Unknown271 (14.41)140 (14.24)105 (15.53)26 (11.77)
History of PE, n (%)0.008
 Ex-PE14 (0.75)5 (0.51)3 (0.44)6 (2.71)
Non-PE1862 (99.04)976 (99.29)671 (99.26)215 (97.29)
 Unknown4 (0.21)2 (0.20)2 (0.30)0 (0.00)
History of alcohol, n (%)0.091
 Nondrinker1874 (99.68)979 (99.59)676 (100.00)219 (99.10)
 Drinker6 (0.32)4 (0.41)0 (0.00)2 (0.90)
Smoking history, n (%)0.091
 Nonsmoker1874 (99.68)979 (99.59)676 (100.00)219 (99.10)
 Smoker6 (0.32)4 (0.41)0 (0.00)2 (0.90)
Delivery history, n (%)0.421
 No102 (5.43)54 (5.49)40 (5.92)8 (3.62)
 Yes1778 (94.57)929 (94.51)636 (94.08)213 (96.38)
Systolic BP (mmHg)c, mean ± SD163.78 ± 16.89164.90 ± 16.09160.89 ± 17.50166.05 ± 18.640.356
Diastolic BP (mmHg)d, mean ± SD102.00 ± 11.09101.78 ± 9.16100.91 ± 13.05105.63 ± 13.190.285
Proteinuria (g/24 h)e, mean ± SD1.02 ± 1.711.34 ± 1.960.41 ± 0.840.65 ± 1.13<0.001
APS, n (%)0.146
 No1870 (99.47)980 (99.69)672 (99.41)218 (98.64)
 Yes10 (0.53)3 (0.31)4 (0.59)3 (1.36)
GDM, n (%)<0.001
 No1536 (81.70)826 (84.03)554 (81.95)156 (70.59)
 Yes344 (18.30)157 (15.97)122 (18.05)65 (29.41)
Postpartum hemorrhage, n (%)0.006
 No1764 (93.83)906 (92.17)645 (95.41)213 (96.38)
 Yes116 (6.17)77 (7.83)31 (4.59)8 (3.62)
Placental abruption, n (%)0.145
 No1862 (99.04)970 (98.68)671 (99.26)221 (100.00)
 Yes18 (0.96)13 (1.32)5 (0.74)0 (0.00)
Mode of delivery, n (%)<0.001
 Transvaginal delivery927 (49.31)464 (47.20)382 (56.51)81 (36.65)
 Cesarean section953 (50.69)519 (52.80)294 (43.49)140 (63.35)
Weeks of gestation at delivery (weeks)f, mean ± SD38.37 ± 1.8538.17 ± 1.9139.00 ± 1.5237.53 ± 1.89<0.001
Placental weight (g)g, mean ± SD514.66 ± 148.02513.53 ± 157.57523.71 ± 143.71495.51 ± 121.300.121
Newborn birth length (cm)h, mean ± SD49.33 ± 2.8049.19 ± 2.4749.70 ± 2.5948.90 ± 4.150.001
Newborn birthweight (g)i, mean ± SD3160.67 ± 570.533122.02 ± 610.063271.73 ± 482.882993.65 ± 574.10<0.001
Newborn sex, n (%)0.257
 Female941 (50.05)504 (51.27)324 (47.93)113 (51.13)
 Male937 (49.84)479 (48.73)350 (51.77)108 (48.87)
 Unknown2 (0.11)0 (0.00)2 (0.30)0 (0.00)
Apgar score-1 min, n (%)0.002
 ≤740 (2.13)27 (2.75)7 (1.03)6 (2.71)
 8-91371 (72.92)707 (71.92)484 (71.60)180 (81.45)
 Unknown469 (24.95)249 (25.33)185 (27.37)35 (15.84)
Apgar score-5 min, n (%)0.012
 ≤75 (0.27)3 (0.31)1 (0.15)1 (0.45)
 8-91405 (74.73)731 (74.36)489 (72.34)185 (83.71)
 Unknown470 (25.00)249 (25.33)186 (27.51)35 (15.84)
Neonatal distress, n (%)0.011
 No1857 (98.78)964 (98.07)674 (99.70)219 (99.10)
 Yes23 (1.22)19 (1.93)2 (0.30)2 (0.90)

Data were expressed as mean ± standard deviation (SD) or count N (%). was considered statistically significant. HDP: hypertensive disorder of pregnancy, PE: preeclampsia, GH: gestational hypertension, CH: chronic hypertension, BMI: body mass index, Rh: rhesus macacus, BP: blood pressure, APS: antiphospholipid syndrome, GDM: gestational diabetes mellitus, and Apgar: activity, pulse, grimace, appearance, and respiration. a: n = 1863, missing data for n = 17; b: n = 1803, missing data for n = 77; c: n = 148, missing data for n = 1732; d: n = 148, missing data for n = 1732; e: n = 1115, missing data for n = 765; f: n = 979, missing data for n = 901; g: n = 1118, missing data for n = 762; h: n = 1288, missing data for n = 592; i: n = 1872, missing data for n = 8.