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. Author manuscript; available in PMC: 2016 Sep 9.
Published in final edited form as: Pediatr Res. 2016 Mar 9;80(1):14–20. doi: 10.1038/pr.2016.46

Table 3.

Laboratory data in vitamin D and Placebo groups before and after intervention

Vitamin D group
(N=51)
Mean±SD		 Placebo group
(N=45)
Mean±SD		 Vit D vs. Placebo
P value
25(OH)D (ng/mL)
    baseline 20.8±7.9 18.9±7.3 0.23
    follow-up 26.1±8.3 17.1±7.0 *<0.0001
    within group change p-value <0.0001 0.041
Calcium (mg/dL)
    baseline 9.7±0.4 9.7±0.4 0.70
    follow-up 9.6±0.4 9.6±0.3 *0.86
    within group change p-value 0.22 0.30
Phosphorus (mg/dL)
    baseline 5.0±0.5 5.1±0.6 0.55
    follow-up 5.0±0.6 4.9±0.6 *0.93
    within group change p-value 0.12 0.039
Albumin (g/dL)
    baseline 4.2±0.3 4.2±0.3 0.70
    follow-up 4.2±0.3 4.1±0.3 *0.43
    within group change p-value 0.27 0.034
*

comes from ANCOVA