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25OHD and PTH at wk 0 and wk 6 by treatment arm. Shown are the mean and 95% confidence interval. The increase in 25OHD from wk 0 to wk 6 is less in arm A compared with arm B (P = 0.03) and arm C (P = 0.0004). No statistically significant changes were observed for change in PTH.
