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Arch Dermatol. 2012 Aug;148(8):939-46. doi: 10.1001/archdermatol.2012.1374.

Smoking and the risk of nonmelanoma skin cancer: systematic review and meta-analysis.

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  • 1Division of Epidemiology and Public Health, UK Centre for Tobacco Control Studies, Nottingham, Englan. jo.leonardi-bee@nottingham.ac.uk

Abstract

OBJECTIVE:

To perform a systematic review and meta-analysis to collate evidence of the effects of smoking on the risk of nonmelanoma skin cancer.

DATA SOURCES:

We searched 4 electronic databases (from inception to October 2010) and scanned the reference lists of the publications retrieved to identify eligible comparative epidemiologic studies.

STUDY SELECTION:

Titles, abstracts, and full text were assessed independently by 2 authors against prespecified inclusion/exclusion criteria.

DATA EXTRACTION:

Data were extracted and quality was assessed independently by 2 authors using the Newcastle-Ottawa Scale.

DATA SYNTHESIS:

Meta-analysis was performed using random-effects models. Results are presented as odds ratios (ORs) with 95% CIs. Heterogeneity was assessed using I2. Twenty-five studies were included. Smoking was significantly associated with cutaneous squamous cell carcinoma (OR, 1.52; 95% CI, 1.15-2.01; I2 = 64%; 6 studies). Smoking was not significantly associated with basal cell carcinoma (OR, 0.95; 95% CI, 0.82-1.09; I2 = 59%; 14 studies) or nonmelanoma skin cancer (OR, 0.62; 95% CI, 0.21-1.79; I2 = 34%; 2 studies).

CONCLUSION:

This study clearly demonstrates that smoking increases the risk of cutaneous squamous cell carcinoma; however, smoking does not appear to modify the risk of basal cell carcinoma.

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PMID:
22711192
[PubMed - indexed for MEDLINE]
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