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Table 3 Step-wise Regression of Predictible Variables

From: Maternal plasma vitamin D levels and associated determinants in late pregnancy in Harare, Zimbabwe: a cross-sectional study

Variable

Coeffient.

Standard error

P-value

HIV status

12.20341

4.950488

0.015

Age

0.4354106

0.3737257

0.246

Gestational age

0.1715963

0.5217306

0.743

Season

 Autumn

−8.672066

6.71355

0.199

 Winter

−44.99294

7.469283

< 0.001

Removing variables with p > 0.1

 HIV Status

12.80705

4.696735

0.007

 Winter season

−42.48865

7.860597

< 0.001