Fig 1.
Flow diagram of randomized trial (CONSORT 2010 Flow Diagram).
Table 1.
Baseline demographic and clinical characteristics of patients with acne and controls.
Table 2.
Results of vitamin D deficiency according to influencing factors.
Fig 2.
Percentages of patients with different vitamin D levels.
Fig 3.
Vitamin D levels and disease severity (*P < 0.05, ***P < 0.001).
Fig 4.
Correlation between vitamin D levels and inflammatory acne.
Fig 5.
Clinical effects of vitamin D supplementation in patients with acne.
(A) Change in vitamin D levels after vitamin D supplementation (***P < 0.001). (B) Photographs showing clinical improvement in a patient with acne. Photographs showing baseline (left) and last visit (right). (C) Median percentile changes from baseline in acne lesions (*P < 0.05).