title: [Skin cancer incidence in Zacatecas].
abstract: BACKGROUND
  Skin cancer is the most frequent cancer related to ultraviolet radiation. The aim was to estimate the incidence of skin cancer type, melanoma and non-melanoma in Zacatecas, Mexico.
  
  
  METHODS
  An epidemiological study was carried out during the period from 2008 to 2012. The data were obtained from the Instituto Mexicano del Seguro Social (IMSS), Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado (ISSSTE), Secretaría de Salud de Zacatecas (SSZ) and a private source, the Centro Médico Alameda. The incidence and the global prevalence were estimated.
  
  
  RESULTS
  We studied 958 skin cancer cases, histopathologically confirmed. The cases were distributed as: 63.6 % basal cell carcinomas, 25.8 % squamous cell carcinomas, and 10.6 % melanoma. Significantly higher proportions were observed in women in the basal cell carcinomas (60.4 %) and squamous cell carcinomas (53.4 %). However, in the case of melanoma, the major proportion was observed in men (55.9 %). The more frequent skin cancer location was the face and for basal cell carcinoma was the nose (53 %); for squamous cell carcinomas were the lips (36 %), and for melanoma it was also the nose (40 %). The skin cancer incidence was estimated in 20 cases for each 100 000 inhabitants. Linear regression analysis showed that the skin cancer is increasing at an annual rate of 10.5 %.
  
  
  CONCLUSIONS
  The anatomical location indicates that solar UV radiation is a risk factor, since the face is the zone with major exposure to solar radiation.
authors.affiliation: Universidad Autónoma de Zacatecas, Zacatecas, Zacatecas, México. jlpv85@gmail.com.
authors.forename: José Luis
authors.initials: JL
authors.lastname: Pinedo-Vega
authors.forename: Rosalba
authors.initials: R
authors.lastname: Castañeda-López
authors.forename: J Ignacio
authors.initials: JI
authors.lastname: Dávila-Rangel
authors.forename: Fernando
authors.initials: F
authors.lastname: Mireles-García
authors.forename: Carlos
authors.initials: C
authors.lastname: Ríos-Martínez
authors.forename: Adrián
authors.initials: A
authors.lastname: López-Saucedo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002280:Basal Cell Carcinoma / Q000453:epidemiology*; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D008545:Melanoma / Q000453:epidemiology*; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D012878:Skin Neoplasms / Q000453:epidemiology*; D013997:Time Factors; D055815:Young Adult
keywords: Basal cell carcinoma; Melanoma; Radiation-induced neoplasms; Skin neoplasms