High serum 25-hydroxyvitamin D concentration in patients with a recent diagnosis of non-melanoma skin cancer: a case-control study.

Background: Sun exposure is critical for vitamin D synthesis and is a major risk factor for the development of non-melanoma skin cancer (NMSC). NMSC is the most common type of cancer in Brazil and coexists with a very high prevalence of vitamin D deficiency.

Objectives: The present study aimed to assess serum 25-hydroxyvitamin D (25[OH]D) concentration in patients with a recent diagnosis of NMSC.