Waist circumference values equivalent to body mass index points for predicting absolute cardiovascular disease risks among adults in an Aboriginal community: a prospective cohort study

Adegbija, Odewumi, Hoy, Wendy E. and Wang, Zhiqiang (2015) Waist circumference values equivalent to body mass index points for predicting absolute cardiovascular disease risks among adults in an Aboriginal community: a prospective cohort study. BMJ Open, 5 11: . doi:10.1136/bmjopen-2015-009185


Author Adegbija, Odewumi
Hoy, Wendy E.
Wang, Zhiqiang
Title Waist circumference values equivalent to body mass index points for predicting absolute cardiovascular disease risks among adults in an Aboriginal community: a prospective cohort study
Journal name BMJ Open   Check publisher's open access policy
ISSN 2044-6055
Publication date 2015-11-13
Year available 2015
Sub-type Article (original research)
DOI 10.1136/bmjopen-2015-009185
Open Access Status DOI
Volume 5
Issue 11
Total pages 7
Place of publication London, United Kingdom
Publisher BMJ Group
Collection year 2016
Language eng
Formatted abstract
Objective: There have been suggestions that currently recommended waist circumference (WC) cut-off points for Australians of European origin may not be applicable to Aboriginal people who have different body habitus profiles. We aimed to generate equivalent WC values that correspond to body mass index (BMI) points for identifying absolute cardiovascular disease (CVD) risks.

Design: Prospective cohort study.

Setting: An Aboriginal community in Australia's Northern Territory.

Participants: From 1992 to 1998, 920 adults without CVD, with age, WC and BMI measurements were followed-up for up to 20 years.

Outcome measures: Incident CVD, coronary artery disease (CAD) and heart failure (HF) events during the follow-up period ascertained from hospitalisation data. We generated WC values with 10-year absolute risks equivalent for the development of CVD as BMI values (20–34 kg/m2) using the Weibull accelerated time-failure model.

Results: There were 211 incident cases of CVD over 13 669 person-years of follow-up. At the average age of 35 years, WC values with absolute CVD, CAD and HF risks equivalent to BMI of 25 kg/m2 were 91.5, 91.8 and 91.7 cm, respectively, for males, and corresponding WC values were 92.5, 92.7 and 93 cm for females. WC values with equal absolute CVD, CAD and HF risks to BMI of 30 kg/m2 were 101.7, 103.1 and 102.6 cm, respectively, for males, and corresponding values were 99.2, 101.6 and 101.5 cm for females. Association between WC and CVD did not depend on gender (p=0.54).

Conclusions: WC ranging from 91 to 93 cm was equivalent to BMI 25 kg/m2 for overweight, and 99 to 103 cm was equivalent to BMI of 30 kg/m2 for obesity in terms of predicting 10-year absolute CVD risk. Replicating the absolute risk method in other Aboriginal communities will further validate the WC values generated for future development of WC cut-off points for Aboriginal people.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Medicine Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Mon, 16 Nov 2015, 13:44:17 EST by Zhiqiang Wang on behalf of Medicine - Royal Brisbane and Women's Hospital