title: Comparison of the ability to identify cardiometabolic risk factors between two new body indices and waist-to-height ratio among Chinese adults with normal BMI and waist circumference.
abstract: OBJECTIVE
  Waist-to-height ratio (WHtR) has been reported to be more strongly associated with cardiometabolic risk factors among non-obese individuals than BMI and waist circumference (WC). A body shape index (ABSI) and body roundness index (BRI) have been proposed recently to assess obesity-related disorders or mortalities. Our aim was to compare the ability of ABSI and BRI with that of WHtR to identify cardiometabolic risk factors in Chinese adults with normal BMI and WC.
  
  
  METHODS
  Receiver-operating characteristic curves and areas under the curve (AUC) were employed to evaluate the ability of the indices (WHtR, BRI, ABSI) to identify metabolic risk factors and to determine the indices' optimal cut-off values. The value of each index that resulted in maximization of the Youden index (sensitivity + specificity - 1) was defined as optimal. Differences in the AUC values between the indices were also evaluated.
  
  
  METHODS
  Individuals attending a voluntary health check-up in Beijing, China, July-December 2015, were recruited to the study.
  
  
  METHODS
  Non-obese adults (n 1596).
  
  
  RESULTS
  Among both genders, ABSI exhibited the lowest AUC value for identifying each risk factor among the three indices; the AUC value of BRI for identifying each risk factor was very close to that of WHtR, and no significant differences were observed between the AUC values of the two new indices.
  
  
  CONCLUSIONS
  When evaluating cardiometabolic risk factors among non-obese adults, WHtR was a simple and effective index in the assessment of cardiometabolic risk factors, BRI could be used as an alternative body index to WHtR, while ABSI could not.
authors.affiliation: 1Departments of Clinical Nutrition,Peking Union Medical College Hospital,China Academic Medical Science and Peking Union Medical College,Beijing 100730,People's Republic of China.
authors.forename: Peng Ju
authors.initials: PJ
authors.lastname: Liu
authors.affiliation: 1Departments of Clinical Nutrition,Peking Union Medical College Hospital,China Academic Medical Science and Peking Union Medical College,Beijing 100730,People's Republic of China.
authors.forename: Fang
authors.initials: F
authors.lastname: Ma
authors.affiliation: 2Medical Examination Center,Peking Union Medical College Hospital,China Academic Medical Science and Peking Union Medical College,Beijing,People's Republic of China.
authors.forename: Hui Ping
authors.initials: HP
authors.lastname: Lou
authors.affiliation: 3Obstetrics and Gynecology,Peking Union Medical College Hospital,China Academic Medical Science and Peking Union Medical College,Beijing,People's Republic of China.
authors.forename: Yan Ning
authors.initials: YN
authors.lastname: Zhu
mesh_terms: D000328:Adult; D019540:Area Under Curve; D044466:Asian People; D001828:Body Image; D015992:Body Mass Index; D002318:Cardiovascular Diseases / Q000453:epidemiology* / Q000209:etiology; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D024821:Metabolic Syndrome / Q000453:epidemiology* / Q000209:etiology; D008875:Middle Aged; D009765:Obesity / Q000150:complications / Q000453:epidemiology*; D012372:ROC Curve; D012307:Risk Factors; D055105:Waist Circumference; D065927:Waist-Height Ratio; D055815:Young Adult
keywords: A body shape index; Body roundness index; Cardiometabolic risk factor; Non-obese; Waist-to-height ratio