title: Diversification and trends in biliary tree cancer among the three major ethnic groups in the state of New Mexico.
abstract: BACKGROUND
  New Mexico's population is composed of 45% non-Hispanic whites, 42% Hispanics, 10% American Indians, and 3% other minorities. The purpose of this study was to compare the trends of biliary tract cancer among these groups over the past 3 decades.
  
  
  METHODS
  The state's tumor registry was used to ascertain the incidence of gallbladder cancer, extrahepatic bile duct cancer, and intrahepatic bile duct cancer.
  
  
  RESULTS
  A total of 1,449 new biliary cancers were diagnosed between 1981 and 2008. The contemporary incidence of gallbladder cancer remains several times higher among American Indians than in other ethnicities: for men, 4.1%, 1.1%, and .8% for American Indians, Hispanics, and non-Hispanic whites, respectively, and for women, 8.1%, 2.1%, and 1.0%, respectively.
  
  
  CONCLUSIONS
  Biliary malignancies are more prevalent among American Indians. Despite a decline in the incidence of gallbladder cancer among American Indians and Hispanics, it remains higher compared with the state's non-Hispanic white population.
authors.affiliation: Department of Surgery, Surgical Oncology, University of New Mexico, Albuquerque, NM, USA. inir@salud.unm.edu
authors.forename: Itzhak
authors.initials: I
authors.lastname: Nir
authors.forename: Charles L
authors.initials: CL
authors.lastname: Wiggins
authors.forename: Katherine
authors.initials: K
authors.lastname: Morris
authors.forename: Ashwani
authors.initials: A
authors.lastname: Rajput
mesh_terms: D001661:Biliary Tract Neoplasms / Q000208:ethnology* / Q000473:pathology; D005260:Female; D006630:Hispanic or Latino; D006801:Humans; D015994:Incidence; D007198:Indians, North American; D008297:Male; D009367:Neoplasm Staging; D009516:New Mexico / Q000453:epidemiology; D012042:Registries; D012044:Regression Analysis; D044465:White People