title: Waist-hip ratio and breast cancer risk in urbanized Nigerian women.
abstract: BACKGROUND
  The aim of this study was to examine the relationship between waist-hip ratio and the risk of breast cancer in an urban Nigerian population.
  
  
  METHODS
  Between March 1998 and August 2000, we conducted a case-control study of hospital-based breast cancer patients (n = 234) and population-based controls (n = 273) using nurse interviewers in urban Southwestern Nigeria.
  
  
  RESULTS
  Multivariable logistic regression showed a significant association between the highest tertile of waist-hip ratio and the risk of breast cancer (odds ratio= 2.67, 95% confidence interval = 1.05-6.80) among postmenopausal women. No association was found in premenopausal women.
  
  
  CONCLUSIONS
  The present study, the first in an indigenous African population, supports other studies that have shown a positive association between obesity and breast cancer risk among postmenopausal women.
authors.affiliation: Division of Oncology, Department of Surgery, University College Hospital, Ibadan, Nigeria. clement.adebamowo@+channing.harvard.edu
authors.forename: Clement A
authors.initials: CA
authors.lastname: Adebamowo
authors.forename: Temidayo O
authors.initials: TO
authors.lastname: Ogundiran
authors.forename: Adeniyi A
authors.initials: AA
authors.lastname: Adenipekun
authors.forename: Rasheed A
authors.initials: RA
authors.lastname: Oyesegun
authors.forename: Oladapo B
authors.initials: OB
authors.lastname: Campbell
authors.forename: Effiong E
authors.initials: EE
authors.lastname: Akang
authors.forename: Charles N
authors.initials: CN
authors.lastname: Rotimi
authors.forename: Olunfunmilayo I
authors.initials: OI
authors.lastname: Olopade
mesh_terms: D000293:Adolescent; D000328:Adult; D001824:Body Constitution / Q000502:physiology*; D015992:Body Mass Index; D001943:Breast Neoplasms / Q000503:physiopathology*; D016022:Case-Control Studies; D006801:Humans; D016015:Logistic Models; D008875:Middle Aged; D015999:Multivariate Analysis; D009549:Nigeria; D017698:Postmenopause; D017697:Premenopause; D012307:Risk Factors; D014504:Urban Health; D014505:Urban Population