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. 2021 Oct 29;11:21339. doi: 10.1038/s41598-021-00839-w

Table 5.

Multiple logistic regression analysis of factors that can be associated with preeclampsia among pregnant women.

Variables Preeclampsia COR (95% CI) AOR (95% CI)a p-value
No Yes
Maternal age
 < 25 34 (85.0) 6 (15.0) 1.71 (0.39–7.43) 0.44 (0.07–2.98) 0.400
25 – 29 29 (90.6) 3 (9.4) 1.00 1.00
 ≥ 30 29 (82.9) 6 (17.1) 2.00 (0.46–8.77) 0.92 (0.12–7.15) 0.939
Body weight (Kg)
 < 65 47 (92.2) 4 (7.8) 1.00 1.00
65 – 74 13 (81.3) 3 (18.8) 2.71 (0.54–13.68) 0.88 (0.01–56.16) 0.950
 ≥ 75 12 (85.7) 2 (14.3) 1.96 (0.32–11.99) 2.19 (0.05–90.22) 0.680
Pre-pregnancy hypertension
No 54 (84.4) 10 (15.6) 1.00 1.00
Yes 14 (73.7) 5 (26.3) 1.93 (0.57–6.56) 1.03 (0.11–9.28) 0.979
Requirement of antihypertensive medication
Regularly or occasionally 14 (73.7) 5 (26.3) 0.24 (0.06–0.93)* 5.45 (1.09–27.31) 0.039*
No 59 (92.2) 5 (7.8) 1.00 1.00
Primiparous
Yes 30 (81.1) 7 (18.9) 1.00 1.00
No 58 (87.9) 8 (12.1) 0.59 (0.20–1.79) 0.57 (0.09–3.46) 0.536
Gravidity
1 30 (81.1) 7 (18.9) 1.40 (0.32–6.11) 1.07 (0.11–10.28) 0.951
2 20 (95.2) 1 (4.8) 0.30 (0.03–3.15) 0.29 (0.02–4.94) 0.391
3 18 (85.7) 3 (14.3) 1.00 1.00
 ≥ 4 15 (88.2) 2 (11.8) 0.80 (0.12–5.44) 1.05 (0.11–10.23) 0.968
Parity
 < 2 40 (85.1) 7 (14.9) 1.44 (0.39–5.36) 1.57 (0.21–11.55) 0.659
2 – 3 33 (89.2) 4 (10.8) 1.00 1.00
 ≥ 4 7 (70.0) 3 (30.0) 3.54 (0.64–19.45) 3.44 (0.34–34.65) 0.294
Previous stillborn or miscarriage history
0 57 (85.1) 10 (14.9) 1.00 1.00
1 17 (85.0) 3 (15.0) 1.01 (0.25–4.08) 0.77 (0.11–5.39) 0.789
 ≥ 2 3 (75.0) 1 (25.0) 1.90 (0.18–20.14) 1.83 (0.01–380.63) 0.825
Number of children
 < 2 64 (85.3) 11 (14.7) 1.00 1.00
 ≥ 2 27 (90.0) 3 (10.0) 0.65 (0.17–2.50) 1.69 (0.24–11.79) 0.596
Intake of fruits and vegetables
Medium to high 65 (90.3) 7 (9.7) 1.00 1.00
Low 9 (56.3) 7 (43.8) 7.22 (2.05–25.42)** 4.29 (0.84–21.98) 0.081
Frequency of visiting doctor during pregnancy
Regularly or occasionally 68 (88.3) 9 (11.7) 1.00 1.00
Never 6 (54.5) 5 (45.5) 6.30 (1.59–24.91)** 6.83 (1.00–46.48) 0.050*

*p < 0.05; **p < 0.01.

aAdjusted for the variables found significant in univariate regression analysis (Requirement of antihypertensive medication, intake of fruits and vegetables, frequency of visiting doctor during pregnancy).