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. 2023 Oct 16;3:1221222. doi: 10.3389/fepid.2023.1221222

Table 2.

General characteristics of studies on PE and CVD risk factors.

Sl no: Author (Year), Country, PubMed ID (PMID) Study design Gene Identification Approach & Number of Genes/polymorphisms/miRNA's Definition of PE Maternal age, years, mean (SD) or (range) Follow-up time after index pregnancy, mean (SD), (years) Sample Size (N) CVD Outcome measures
Minimum SBP, DBP (mm Hg) Minimum proteinuria g/24 h, dipstick reading Collection of PE information Cases, N Controls, N
PE diagnostic criteria based on & Year
1) A.S. Kvehaugen et al. (48), Norway,
PMID: 24593135
CC CG, SNP analysis: TaqMan-based genotyping
1 SNP from 1 gene
140, 90 0.3, _ Delivery reports: Medical Birth Registry of Norway and HUNT2 survey PE = 41.0 (9.81),
Normotensive = 41.2 (10.8)
15.1 (8.51) 934 2011 Hypertension:
SBP ≥ 140 mmHg, DBP ≥ 90 mmHg, Stage-2 hypertension:
SBP ≥ 160 mmHg,
DBP ≥ 100 mmHg, BMI, Serum Cholesterol, HDL-C, TC/HDL, Diabetes, angina pectoris, myocardial infarction or cerebral stroke
ACOG, 2002
2) I.V. da Silva et al. (45), Portugal,
PMID: 33652340
CC CG, Genotyping by qPCR
4 SNPs from 4 genes
140,90 0.3, 1+ Medical records: Julio Diniz Maternity Hospital, Portugal PE = 35.24 (5.47),
Normotensive = 35.24 (5.47)
2–16 90 60 Hypertension:
Grade 1 hypertension: SBP: 140–159 mmHg, DBP: 90–99 mmHg;
Grade 2 hypertension:
SBP: 160–179 mmHg, DBP: 100–109 mmHg;
Grade 3 hypertension:
SBP: ≥180, DBP: ≥110;
Isolated systolic hypertension: SBP ≥140, DBP <90
Weight, Waist circumference, Hip circumference, CRP, MPO, LDL, HDL, Non-HDL Cholesterol, TC, Apo A, Apo B, Glucose
ISSHP, 2001 Follow up:
48 98
3) C. Oudejans et al. (43), Netherlands,
PMID: 26870946
Twin Study, CC Epigenetic risk profiling by whole-genome bisulphite sequencing: Differential DNA methylation, Phenotypic risk assessment
107 differentially methylated regions of 22732
140,90 0.3, 2+ Medical records: VU University Medical Centre, Amsterdam Baseline:
Twin A:
PE = 27, Normotensive = 25
Twin B:
PE = 34, Normotensive = 32
Epigenetic risk assessment after pregnancy: 2;
Later-life CVD phenotype assessment:
Twin A:
PE = 6, Normotensive = 8
Twin B:
PE = 10, NT = 12
2 2 SBP ≥ 130 mmHg, DBP ≥ 85 mmHg, BMI, Waist circumference >88 cm, Hip circumference, Cholesterol, HDL <1.29 mmol/L, LDL, Triglyceride levels ≥1.7 mmol/L, fasting glucose levels ≥5.7 mmol/L, HbA1c, NT-proBNP > 220 pg/ml, LVEF > 50%, LV mass index >122 g/m2, Diastolic function
ISSHP, 2001
4) I.
Romagnuolo et al. (44),
Italy, PMID: 26827667
CC CG, Polymorphism genotyping: PCR
2 SNPs from 1 gene
140,90 0.3, _ Clinical reports: Gender Medicine Clinic of the Center for Atherothrombotic Disease, Florence Placenta-mediated Pregnancy Complications = 35 (19–49),
Normotensive = 34 (22–40)
12–25 weeks: Lp(a) levels measurement Total Placenta-mediated Pregnancy Complications:360;
PE: 154
270 Lp(a) levels
RCOG, 2009

ACOG, american college of obstetricians and gynaecologist; Apo, apolipoprotein; BMI, body mass index; CC, case-control; CG, candidate gene study; CRP, C-reactive protein; CVD, cardiovascular disease; DBP, diastolic blood pressure; HbA1c, glycated haemoglobin; HDL-C, high-density lipoprotein-cholesterol; HUNT2, phase 2 of the Nord-Trondelag health study; ISSHP, international society for the study of hypertension in pregnancy; LDL-C, low-density lipoprotein-cholesterol; Lp(a), Lipoprotein(a); LV, left ventricular; LVEF, left ventricular ejection fraction; miRNA, microRNA; MPO, myeloperoxidase; NT-proBNP, N-terminal brain natriuretic peptide; PE, preeclampsia; qPCR, quantitative polymerase chain reaction; RCOG, royal college of obstetricians & gynaecologists; SBP, systolic blood pressure; SNP, single nucleotide polymorphism; TC, total cholesterol; TG, triglycerides.