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. 2021 Apr 29;13(5):1511. doi: 10.3390/nu13051511

Table 5.

Distribution of serum 25(OH)D concentrations greater than 20 ng/mL, 50 ng/mL and 100 ng/mL at baseline and post-treatment in each phototherapy clinical trial.

Baseline Baseline Post-Tx Post-Tx Post-Tx
Study 25(OH)D 25(OH)D 25(OH)D 25(OH)D 25(OH)D
Year Group N N > 20 ng/mL N > 50 ng/mL N > 20 ng/mL N > 50 ng/mL N > 100 ng/mL
1996 UVB + Placebo 7 7 2 7 6 2
UVB + Calcitirol 6 4 0 6 4 1
2010 UVB 29 19 0 29 15 1+
No UVB 29 NR 0 7 0 0
2009 BB-UVB 26 65 5 68 48 3
NB-UVB 42
2010 BB-UVB 24 22 3 24 17 0
Sunshine 20 17 0 20 4 0
Total 183 134 10 161 94 6

Note: N = number of patients.