Research Article

Association between ELABELA Serum Concentrations in First Trimester and Pregnancy-Induced Hypertension

Table 1

Demographic and clinical characteristics of the study population.

All the controlsPIHGHPE
valueP value value

Demographic characteristics
 Age0.6450.3990.627
 Prepregnant BMI﹤0.0010.0340.005
 Gravidity0.2890.2100.857
 Parity0.6621.0000.426
 PIH history0 (0/132)9.1% (4/44)0.3167.1% (2/28)0.61612.5% (2/16)0.478
 Smoking history7.6% (10/132)6.8% (3/44)0.8737.1% (2/28)0.6406.3% (1/16)0.521
 Drink history4.5% (6/132)2.3% (1/44)0.5210 (0/28)0.6196.3% (1/16)0.797
Clinical characteristics in early pregnancy
 Gestational age at sampling (weeks)0.7520.4070.250
 SBP (mmHg)<0.001<0.0010.002
 DBP (mmHg)<0.001<0.0010.002
 HGB (g/L)0.0260.1200.091
 ALT (U/L)0.2240.2880.494
 AST (U/L)0.1870.5100.219
 UA (μmol/L)0.0290.6720.014
 TG (mmol/L)0.0210.6820.014
 TCHOL (mmol/L)0.3350.9420.145
 HDL (mmol/L)0.0320.9800.005
 LDL (mmol/L)0.9940.7090.839
Clinical characteristics after onset
 GDM14.4% (19/132)20.5% (9/44)0.34214.3% (4/28)0.74631.3% (5/16)0.204
 Highest SBP before labor (mmHg)<0.0010.0020.015
 Highest DBP before labor (mmHg)<0.0010.0010.013
 Gestational age at delivery (weeks)0.0060.7900.008
 Birthweight (g)0.0020.4060.004
 Delivery0.1400.8250.015
  Vaginal51.5% (68/132)38.6% (17/44)57.1% (16/28)6.3% (1/16)
  Cesarean section48.5% (64/132)61.4% (27/44)42.9% (12/28)93.8% (15/16)
 Fetal sex0.4260.6470.773
  Male45.5% (60/132)52.3% (23/44)53.6% (15/28)50.0% (8/16)
  Female54.5% (72/132)47.7% (21/44)46.3% (13/28)50.0% (8/16)

Comparison was conducted between the designated patient group and their 1 : 3 age- and gestational age-matched health controls: 44 PIH cases versus 132 corresponding matched controls, 28 GH cases versus 84 corresponding matched controls, 16 PE cases versus 48 corresponding matched controls. Gestational diabetes mellitus (GDM) was defined using the criteria from the International Association of Diabetes and Pregnancy Study Groups based on the results of a standard 2-hour 75 g oral glucose tolerance test at 24-28 weeks of gestation. ALT; alanine aminotransferase; AST: aspartate aminotransferase; BMI: body mass index; DBP: diastolic pressure; GDM: gestational diabetes mellitus; GH: gestational hypertension; HDL: high-density cholesterol; HGB: hemoglobin; LDL: low-density cholesterol; PE: preeclampsia; PIH: pregnancy-induced hypertension; SBP: systolic pressure; TCHOL: total cholesterol; TG: triglycerides; UA: uric acid.