title: Trends in Non-Melanoma Skin Cancer (Basal Cell Carcinoma and Squamous Cell Carcinoma) in Canada: A Descriptive Analysis of Available Data.
abstract: BACKGROUND
  Despite its increased incidence and status as the most prevalent cancer in Canada, there is a paucity of epidemiological data on non-melanoma skin cancer (NMSC).
  
  
  OBJECTIVE
  To assess trends of keratinocyte carcinomas (KC) in Canada over 5 decades.
  
  
  METHODS
  Articles published from 1960 to 2015 on NMSC in Canada were identified through MEDLINE. Six articles met our search criteria.
  
  
  RESULTS
  Overall, KC has increased. However, the rate of increase in the past decade has slowed down and decreased in younger age cohorts. Men had higher incidences of KC. In both sexes, the basal cell carcinoma and squamous cell carcinoma ratio was ≥2.5:1. Keratinocyte carcinomas were most commonly located on the head and neck, and increasing rates are occurring on the trunk.
  
  
  CONCLUSIONS
  The methods of registering skin cancer cases vary among different provinces.
  
  
  CONCLUSIONS
  Keratinocyte carcinomas incidence is overall increasing; however, there may be evidence that the incidence is leveling off and decreasing in younger age cohorts.
authors.affiliation: Division of Dermatology and Cutaneous Sciences, Department of Medicine, University of Alberta, Edmonton, AB, Canada.
authors.forename: Mariam
authors.initials: M
authors.lastname: Abbas
authors.affiliation: Department of Dermatology and Skin Science, University of British Columbia, Vancouver, BC, Canada sunil.kalia@vch.ca.
authors.forename: Sunil
authors.initials: S
authors.lastname: Kalia
mesh_terms: D002170:Canada / Q000453:epidemiology; D002280:Basal Cell Carcinoma / Q000453:epidemiology* / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology* / Q000473:pathology; D006801:Humans; D015994:Incidence; D015603:Keratinocytes / Q000473:pathology; D012878:Skin Neoplasms / Q000453:epidemiology* / Q000473:pathology
keywords: cancer; dermatology