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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