Meta-analysis2020Open access

25-Hydroxyvitamin D status, vitamin D intake, and skin cancer risk: a systematic review and dose-response meta-analysis of prospective studies

Mahamat-Saleh Y, Aune D, Schlesinger S

Scientific reports · 45 citations

How it was studied

Design
Meta-analysis (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death

Who paid for it

Funding
Independent funding
University or hospital
Imperial College London
Government
Institut National de la Santé et de la Recherche Médicale
Government
Institut National Du Cancer
Nonprofit
World Cancer Research Fund
Government
National Cancer Institute
Government
the Paris Ile-de-France region

Based on 6 listed funder(s) and full-text disclosure statement.

Publication

Published
2020-08-04 · Sci Rep · vol. 10 · issue 1 · p. 13151
Publisher
Nature Portfolio
Cited
75 citations · more than 95% of similar papers · 3.2× the field average
Impact
Top 10% most cited in its field
References
120 works
Access
Open access (journal) · CC-BY
Research areas
Vitamin D Research Studies · Psoriasis: Treatment and Pathogenesis · Skin Protection and Aging
Keywords
Vitamin D and neurology, Medicine, Skin cancer, Meta-analysis, Prospective cohort study, Internal medicine, Relative risk, Confidence interval, Cancer, vitamin D deficiency, Melanoma, Oncology, Basal cell carcinoma, Basal (medicine), Vitamin, Physiology, Gastroenterology, Basal cell, Cancer research
MeSH
humans, skin neoplasms, vitamin d, risk factors, prospective studies, dose-response relationship, drug, basal cell carcinoma

3 authors

From FR, NO, GB, DE

  • Yahya Mahamat‐Saleh · correspondingUniversité Paris-Sud; Inserm; Université de Versailles Saint-Quentin-en-Yvelines; Université Paris-Saclay; Institut Gustave Roussy; Centre de recherche en Epidémiologie et Santé des Populations
  • Dagfinn AuneOslo University Hospital; Oslo Nye Høyskole; Imperial College London
  • Sabrina SchlesingerDeutsches Diabetes-Zentrum e.V.; Heinrich Heine University Düsseldorf

Abstract

Sun exposure is a major environmental risk factor for skin cancers and is also an important source of vitamin D. However, while experimental evidence suggests that vitamin D may have a protective effect on skin cancer risk, epidemiologic studies investigating the influence of 25-hydroxyvitamin D (25(OH)D) level and/or vitamin D intake on skin cancer risk are conflicting. A systematic review and dose-response meta-analyses of prospective studies was conducted to clarify these associations. Relevant studies were identified by searching the PubMed database up to 30th August 2019. Random effects dose-response meta-analyses were used to estimate summary relative risks (SRRs) and 95% confidence intervals (CIs). Overall, thirteen prospective studies were included. Circulating level of 25(OH)D was associated with higher risks of melanoma (SRR (95% CI) per 30 nmol = 1.42 (1.17-1.72)) and keratinocyte cancer (KC) (SRR (95% CI) per 30 nmol/L = 1.30 (1.13-1.49)). The SRR (95% CI) per 30 nmol/L increase in 25(OH) D level was 1.41 (1.19-1.67), and 1.57 (0.64-3.86), for basal cell carcinomas (BCCs) and squamous cell carcinomas (SCCs), respectively. However, while we found that vitamin D intake (from diet, supplemental and total) was not associated with risks of melanoma and SCC, vitamin D intake was associated with slightly increased BCC risk, albeit with no heterogeneity across skin cancer type. This meta-analysis suggests positive associations between circulating 25(OH)D level and risk of melanoma and KC, however, this finding is most likely confounded by sun exposure. We found no associations between vitamin D intake skin cancers, except positive associations with BCC risk.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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