Prevalence, Associated Factors and Psychological Determinants of Obesity among Adults in Selangor, Malaysia

Abstract

Background: The pervasiveness of obesity is a growing concern in the world. This study aims to determine the prevalence of obesity among a segment of the Malaysian population, as well as investigate associated factors and psychological determinants of obesity. Methods: A cross-sectional study design was carried out in Selangor, Malaysia. A total of 1380 Malaysian adults (≥18 years old) participated in a structured and validated questionnaire survey. TANITA body scale and SECA 206 body meter were used to measure the respondents’ weight and height, from which measurements of their body mass index (BMI) were calculated. Results: The overall prevalence of obesity (BMI ≥ 30 kg/m2) among adults in Selangor, Malaysia, was 18.6%. Factors significantly associated with increased risk of obesity were: being female (OR = 1.61, 95% CI [1.20–2.17]), aged between 30 to 39 years old (OR = 1.40, 95% CI [1.04–1.88]), being Indian (OR = 1.55, 95% CI [1.13–2.12]), married (OR = 1.37, 95% CI [1.03–1.83]), and having only primary school education (OR = 1.80, 95% CI [1.17–2.78] or secondary school education (OR = 1.37, 95% CI [1.04–1.81]). In the multiple linear regression analysis (stepwise method), perceived stress (B = −0.107, p = 0.041), suicidal ideation (B = −2.423, p = 0.003), and quality of life in the physical health domain (B = −0.350, p = 0.003) inversely and significantly contributed to BMI among males. Among females, stressful life events contributed positively to BMI (B = 0.711, p < 0.001, whereas quality of life in the psychological domain had a negative effect (B = −0.478, p < 0.001) in this respect. Conclusion: There is an urgent need to integrate psychological approaches to enhance the effectiveness of obesity prevention strategies and weight-loss programs.

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