Body mass index and waist circumference trajectories across the life course and birth cohorts, 1996-2015 Malaysia: sex and ethnicity matteS

Teh, Chien Huey and Rampal, Sanjay and Kee, Chee Keong and Azahadi, Omar and Tahir, Aris (2023) Body mass index and waist circumference trajectories across the life course and birth cohorts, 1996-2015 Malaysia: sex and ethnicity matteS. International Journal of Obesity, 47 (12). pp. 1302-1308. ISSN 0307-0565, DOI https://doi.org/10.1038/s41366-023-01391-5.

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Abstract

Objective: The global obesity epidemic remains a significant threat to public health and the economy. Age-period-cohort (APC) analysis is one method to model the trajectory of obesity. However, there is scarce published evidence of such analyses among the South East Asian population. This study aims to explore the sex and ethnic variations of BMI and waist circumference trajectories over time among non-institutionalized Malaysian adults aged 18 to 80 years.Methods: Data from four population-based National Health and Morbidity Surveys conducted in 1996, 2006, 2010, and 2015 were pooled. Hierarchical Age-Period-Cohort (HAPC) analysis explored the trajectories of BMI and waist circumference across the life course and birth cohorts by sex and ethnicity. These models assumed no period effect.Results: Generally, BMI and waist circumference trajectories increased across age and birth cohorts. These trajectories varied by sex and ethnicity. Females have more profound increasing BMI and waist circumference trajectories than their male counterparts as they age and as cohort recency increases. Chinese have less profound BMI and waist circumference increases across the life course and birth cohorts than other ethnic groups.Conclusions: The profound increasing cohort trajectories of obesity, regardless of sex and ethnicity, are alarming. Future studies should focus on identifying factors associated with the less profound cohort effect among the Chinese to reduce the magnitude of trajectories in obesity, particularly among future generations.

Item Type: Article
Funders: Medical Research and Ethics Committee (MREC) [Grant No: P42-251-170000-00500033; NMRR-10-757-6837; NMRR-14-1064-21877]
Uncontrolled Keywords: C-Reactive protein; Age; Period; Obesity
Subjects: R Medicine > R Medicine (General)
R Medicine > RA Public aspects of medicine
Divisions: Faculty of Medicine
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 17 Oct 2025 03:11
Last Modified: 17 Oct 2025 03:11
URI: http://eprints.um.edu.my/id/eprint/48113

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