title: Nonmelanoma skin cancer in an Irish population: an appraisal of risk factors.
abstract: Previous Irish studies have shown a high prevalence of nonmelanoma skin cancer (NMSC). However, unlike elsewhere where the generally quoted ratio of basal cell carcinoma (BCC):squamous cell carcinoma (SCC) is at least 4:1 the ratio in Ireland was found to be 1:1. We examined this ratio in patients attending the dermatology outpatients and determined risk factors for the development of NMSC within an Irish population where 75% of the population have been shown to have skin type 1 or 11. The study consisted of a retrospective 10 year review of biopsy proven cases of NMSC and a prospective case control study of NMSC which allowed examination of risk factors and comparison to a control group. The BCC:SCC ratio in the retrospective study was 3:1. In the prospective study the ratio of BCC:SCC was 4.4:1. Skin type 1 and numerous freckles were identified as risk factors in the NMSC group.
authors.affiliation: City of Dublin Skin & Cancer Hospital.
authors.forename: E
authors.initials: E
authors.lastname: Healy
authors.forename: P
authors.initials: P
authors.lastname: Collins
authors.forename: L
authors.initials: L
authors.lastname: Barnes
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002280:Basal Cell Carcinoma / Q000453:epidemiology* / Q000209:etiology; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology* / Q000209:etiology; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D007494:Ireland / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012189:Retrospective Studies; D012307:Risk Factors; D012878:Skin Neoplasms / Q000453:epidemiology* / Q000209:etiology