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Table 1 Demographic, clinical and obstetric related characteristics of the study population

From: Serum calcium and magnesium levels in women presenting with pre-eclampsia and pregnancy-induced hypertension: a case–control study in the Cape Coast metropolis, Ghana

Variables Control αp -value PIH β p -value PE γ p -value
  (n = 160)   (n = 120)   (n = 100)  
Age (years) 30.70 ± 4.24 0.0809 30.03 ± 6.74 0.2817 32.28 ± 8.58 0.0560
SBP (mmHg) 112.50 ± 8.40 < 0.0001 155.17 ± 10.21 0.2935 152.60 ± 7.09 < 0.0001
DBP (mmHg) 65.25 ± 6.40 < 0.0001 101.63 ± 7.84 0.5133 102.24 ± 6.81 < 0.0001
BMI (kgm +2 ) 28.25 ± 5.67 0.4827 29.70 ± 11.43 0.9381 29.04 ± 7.61 0.4484
Gestational age (weeks) 31.92 ± 4.69 0.6320 31.40 ± 4.27 0.4993 30.72 ± 2.84 0.2518
Gravidity n (%)       
Primigravida 80 (50.0) 0.9626 56 (46.7) 0.8949 56 (56.0) 0.7885
Secundigravida 36 (22.5) 0.2865 48 (40.0) 0.0675 12 (12.0) 0.5693
Multigravida 44 (27.5) 0.1133 16 (13.3) 0.2484 32 (32.0) 0.9364
Parity n (%)       
Nulliparous 88 (55.0) 0.9904 68 (56.7) 0.9693 60 (60.0) 0.9246
Primiparous 40 (25.0) 0.9451 36 (30.0) 0.4769 16 (16.0) 0.6286
Multiparous 32 (20.0) 0.4346 16 (13.3) 0.5936 24 (24.0) 0.9748
Contraceptive use n (%)       
Yes 68 (42.5) 0.3922 32 (26.7) 0.9103 32 (32.0) 0.6989
History of Abortion n (%)       
Yes 40 (25.0) 0.2793 12 (10.0) 0.9723 12 (12.0) 0.4437
New paternity n (%)       
Yes 40 (25.0) 0.7022 20 (16.7) 0.2610 36 (36.0) 0.6377
  1. Values are in mean ± SD and frequency (proportion) where appropriate. Comparison between proportions was done using Fischer's exact test. One-way ANOVA coupled with Dunnett multiple comparisons was used to compare multiple groups. α P-value (comparison between control & PIH); βp-value (comparison between PIH & PE); γp-value (comparison between controls & PE). PIH: Pregnancy-induced hypertension; PE: Pre-eclampsia, SBP: Systolic blood pressure; DBP: Diastolic blood pressure. Data in boldface indicate statistical significance.