title: Comparison of diets of urban American Indian and non-Hispanic whites: populations with a disparity for biliary tract cancer rates.
abstract: OBJECTIVE
  The incidnece of biliary tract cancer (BTC) is many-fold higher for American Indians (AI) relative to non-Hispanic whites (NHW). Neither gallstones nor genetics can account for this difference. There is speculation that certain fatty acids in bile may play a role in preventing BTC. Since diet may influence composition of bile, we compared the dietary intakes of urban AI and NHW adult women in New Mexico.
  
  
  METHODS
  Design, a cross- sectional study of the diets of lactating AI and NHW women was conducted. Setting, the University of New Mexico Hospital. Participants, healthy lactating women 18 to 39 years of age were recruited. Main outcome measures, a three-day diet record for each participant was analyzed.
  
  
  RESULTS
  The AI women consumed less calcium (p = 0.04) and significantly less short and intermediate chain-length fatty acids (C4-C12), but nearly twice as much proinflammatory arachidonic acid as the NHWs (p < 0.01). The intake of dairy products by AI women was less than NHW women (p = 0.01) while the intake of processed meat products was higher (p < 0.01).
  
  
  CONCLUSIONS
  Dietary factors may account for the difference in the risk of BTC between AI and NHW women.
authors.affiliation: Department of Surgery, University of New Mexico, Albuquerque, NM, USA.
authors.forename: Robert H
authors.initials: RH
authors.lastname: Glew
authors.forename: Rosemary S
authors.initials: RS
authors.lastname: Wold
authors.forename: Dorothy J
authors.initials: DJ
authors.lastname: VanderJagt
mesh_terms: D000293:Adolescent; D000328:Adult; D016718:Arachidonic Acid / Q000008:administration & dosage; D001661:Biliary Tract Neoplasms / Q000453:epidemiology* / Q000208:ethnology* / Q000209:etiology; D002136:Calcium, Dietary / Q000008:administration & dosage; D003430:Cross-Sectional Studies; D004032:Diet / Q000009:adverse effects / Q000208:ethnology*; D015930:Diet Records; D004435:Eating; D005227:Fatty Acids / Q000008:administration & dosage; D005260:Female; D006801:Humans; D007198:Indians, North American / Q000706:statistics & numerical data*; D008460:Meat / Q000009:adverse effects / Q000706:statistics & numerical data; D009516:New Mexico / Q000453:epidemiology; D012307:Risk Factors; D014505:Urban Population; D044465:White People / Q000706:statistics & numerical data*; D055815:Young Adult
chemical_list: D002136:Calcium, Dietary; D005227:Fatty Acids; D016718:Arachidonic Acid