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Table 3 Pearson's correlation co-efficient of association between variables for the control (lower left-hand side) and PIH (upper right-hand side) groups

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

Variable

Age

SBP

DBP

GA

BMI

Ca 2+

Mg 2+

Age

 

0.047

0.100

-0.215

0.020

-0.181

0.059

SBP

0.194

 

0.115

0.149

0.575 **

-0.314

-0.083

DBP

0.201

0.370 *

 

-0.321

0.129

-0.221

0.158

GA

-0.085

-0.015

-0.166

 

0.329

0.038

-0.234

BMI

0.303

0.434 **

0.068

0.011

 

0.045

0.151

Ca 2+

0.179

-0.181

-0.130

0.023

0.020

 

0.494 **

Mg 2+

0.147

-0.201

-0.111

-0.043

-0.113

0.841 **

 
  1. *Correlation is significant at the 0.05 level (2-tailed). **Correlation is significant at the 0.01 level (2-tailed). GA: Gestational Age; BMI: Body Mass Index: DBP: Diastolic Blood Pressure; SBP: Systolic Blood Pressure. Data in boldface indicate statistical significance.