title: Type-specific prevalence of human papillomavirus in women screened for cervical cancer in Labrador, Canada.
abstract: BACKGROUND
  A higher incidence of cervical cancer and human papillomavirus (HPV) infection has been reported in northern Canada and in First Nation, Métis and Inuit women, with some evidence to suggest that the HPV type distribution in these populations may be different from the rest of Canada.
  
  
  OBJECTIVE
  The objective of this study was to measure the HPV type prevalence in Labrador women to determine if significant differences in HPV types could reduce the effectiveness of HPV vaccination.
  
  
  METHODS
  The prevalence of HPV types was determined in 1,370 women presenting for routine pap screening in Labrador between February and November 2010. Cervical cytology and HPV genotyping were performed on the same liquid-based cytology specimens.
  
  
  RESULTS
  The overall prevalence of HPV was 21.4%; cytological abnormalities were found in 8.8% of the participants. HPV 16 and 18 were the most common high-risk HPV types. These two types were found in 52.4% of high-grade lesions. The prevalence in HPV infections was comparable across the Labrador regions.
  
  
  CONCLUSIONS
  The present results support the potential effectiveness of the HPV immunization program in Labrador.
authors: National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada. alberto.severini@phac-aspc.gc.ca
authors: Alberto
authors: A
authors: Severini
authors: Ying
authors: Y
authors: Jiang
authors: Paul
authors: P
authors: Brassard
authors: Howard
authors: H
authors: Morrison
authors: Alain A
authors: AA
authors: Demers
authors: Elizabeth
authors: E
authors: Oguntuase
authors: Muna
authors: M
authors: Al-Rushdi
authors: Felicia
authors: F
authors: Preston
authors: Samuel
authors: S
authors: Ratnam
authors: Yang
authors: Y
authors: Mao
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001110:Arctic Regions / Q000453:epidemiology; D005260:Female; D052162:Human papillomavirus 16; D052161:Human papillomavirus 18; D006801:Humans; D015994:Incidence; D007198:Indians, North American; D004930:Inuit; D008875:Middle Aged; D009523:Newfoundland and Labrador / Q000453:epidemiology; D027383:Papillomaviridae / Q000145:classification*; D030361:Papillomavirus Infections / Q000208:ethnology*; D055815:Young Adult; D002578:Uterine Cervical Dysplasia / Q000473:pathology / Q000821:virology
keywords: aboriginal populations; cervical cancer; human papillomavirus; prevalence