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Table 2 Univariate D (25O HD) levels before hip fracture surgery (n=155), and baseline characteristics

From: An initial loading-dose vitamin D versus placebo after hip fracture surgery: baseline characteristics of a randomized controlled trial (REVITAHIP)

Continuous independent variablea   n Correlation coefficient (r) P value
Number of medications used   156 0.159 0.048*
VRS pain rating   155 -0.177 0.028*
Categorical independent variable b    Mean (sd) P value
Living arrangements (living alone/with others)   155   0.095
Using calcium   156   0.027*
  No   51.2 (22.9)  
  Yes   64.2 (25.2)  
Using vitamin D   156   <0.001*
  No   50.3 (22.7)  
  Yes   73.4 (20.1)  
  1. aContinuous independent variables were compared individually with 25O HD (continuous dependent variable) using Pearson Correlation Coefficient.
  2. bCategorical independent variables were compared individually with 25O HD using ANOVA.
  3. *Indicates statistical significance (p<.05).