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Table 4 Bivariate and multivariable analysis for the predictors of hypertensive disorders of pregnancy in Tigray, 2018

From: Risk factors for hypertensive disorders of pregnancy among mothers in Tigray region, Ethiopia: matched case-control study

Variables Matched unadjusted OR(95% CI) Matched adjusted OR(95% CI)
Residence
 Rural 3.1 (1.9, 5.0)* 3.7(1.9, 7.1)**
 Urban 1.0 1.0
Age
 Mean ± (SD) 1.02(0.9, 1.06) 0.96 (0.9, 1.02)
Marital status
 Married 1.0 1.0
 Unmarried 0.5(0.2, 1.4) 0.44 (0.12, 1.5)
Family History of hypertension
 Yes 3.6 (1.7, 7.6)* 2.1 (0.7, 6.4)
 No 1.0 1.0
Fruit use
 Yes 1.0 1.0
 No 5.3 (3.0, 9.4)* 5.1 (2.4, 11.15)**
Vegetable use   1.0
 Yes 1.0 1.2(0.6, 2.3)
 No 2.08 (1.3, 3.3)*  
History of smoking
 Yes 1.0 1.0
 No 0.3 (0.07, 1.2) 0.6 (0.07, 5.2)
BMI of mothers (prepregnancy)
 < 18.5 1.0 1.0
 18.5–24.9 0.95 (0.56, 1.6) 1.7 (0.8, 3.4)
 25–29.9 4.3 (1.4, 13.6)* 5.5 (1.12, 27.6)*
Coffee use
 Yes 3.08 (1.6, 5.9)* 1.9 (0.8, 4.4)
 No 1.0 1.0
Pregnancy type
 multiple 4.1 (1.8, 9.6)* 4.2 (1.3, 13.3)*
 single 1.0 1.0
Presence of gestational diabetes mellitus
 Yes 4.6 (1.2, 18.0)* 5.4 (1.1, 27.0)*
 No 1.0 1.0
Oral contraceptive use
 Yes 1.5 (0.9, 2.4) 1.2(0.6, 2.4)
 No 1.0 1.0
  1. *P-value <0.01, **P-value <0.001