Main Organiser

Julius Centre University of Malaya

Co-organiser

Department of Social and Preventive Medicine, Faculty of Medicine, University of Malay

Supported by

University of Malaya

OPTIMAL WAIST CIRCUMFERENCE CUT- OFF VALUES FOR PREDICTING CARDIOVASCULAR RISK FACTORS IN A MULTI-ETHNIC POPULATION

Author

Kee CC 1 , Sumarni MG 1 , Lim KH 2 , Ahmad Faudzi Y 1 , Amal NM 1

Institution

1 Institute for Medical Research, 50588 Kuala Lumpur
2 Institute for Public Health, Bangsar, Kuala Lumpur

Abstract

Objectives: To determine the optimal cut-offs of waist circumference (WC) in predicting cardiovascular (CV) risk factors for the Malaysian population.

Methods: We analysed data from 32,703 Malaysians (14,980 men and 17,723 women) aged 18 and above who participated in the Third National Health and Morbidity Survey in 2006. Gender-specific logistic regression analyses were used to examine associations between WC and three CV risk factors (diabetes mellitus, hypertension, and hypercholesterolemia). Receiver Operating Characteristic (ROC) curves were used to determine the cut-off values of WC with optimum sensitivity and specificity for the detecting these CV risk factors.

Results: The odds ratio for having diabetes mellitus, hypertension, and hypercholesterolemia or at least one of the CV risk factor increased significantly as WC cut-off point increased. Optimal WC cut-off values for predicting the presence of diabetes mellitus, hypertension, hypercholesterolemia and at least one of the three CV risk factors varied from 81.4 to 85.5 cm for men and 79.8 to 80.7 cm for women.

Conclusion: Our findings indicate that WC cut-offs of 81 cm in men and 80 cm in women are appropriate for diagnosis of abdominal obesity and for recommendation to undergo cardiovascular risk screening and weight management.