Prevalence and factors associated with pre-diabetes and undiagnosed diabetes in Cambodia: cross-sectional study based on the World Health Survey Plus 2023

TL;DR

This study found that 26.4% of Cambodians have pre-diabetes and 9.3% have undiagnosed diabetes, with higher risks in urban areas, older adults, and those with obesity or high triglycerides.

Contribution

The study is the first to report on the prevalence and risk factors of pre-diabetes and undiagnosed diabetes in Cambodia using nationally representative data.

Findings

Pre-diabetes prevalence was 26.4% and undiagnosed diabetes was 9.3% in Cambodia.

Urban residence, older age, obesity, and elevated triglycerides were significant risk factors for pre-diabetes.

Hypertension and high waist circumference were additional risk factors for undiagnosed diabetes.

Abstract

This study aimed to determine the prevalence and factors associated with pre-diabetes and undiagnosed type 2 diabetes (UDD) in Cambodia.

This analysis used data from the WHO World Health Survey Plus, which was collected using a cross-sectional design with a GIS-based, three-stage sampling approach. Multiple logistic regression was used to identify key associated factors, based on a significance level of p<0.05.

Data were collected from all 25 provinces in Cambodia between 12 March 2023 and 31 May 2023.

4427 individuals aged 18 years or older, residing in the selected household for at least 6 months in the past year.

Pre-diabetes (Haemoglobin A1c (HbA1c) 5.7%–6.4%) and UDD (HbA1c≥6.5%), without prior knowledge of having type 2 diabetes (T2D).

The weighted prevalences of pre-diabetes and UDD were 26.4% (95% CI 24.0% to 29.0%) and 9.3% (95% CI 7.9% to 11.0%). Pre-diabetes prevalence was higher in urban areas compared with rural areas (adjusted OR, aOR=1.2, 95% CI 1.0 to 1.4), males (aOR=1.7, 95% CI 1.3 to 2.3), individuals aged 40–49 (aOR=1.8, 95% CI 1.4 to 2.4), individuals aged 50+ years group (aOR=2.9, 95% CI 2.3 to 3.6) compared with the 18–39 years group, overweight individuals (aOR=1.7, 95% CI 1.4 to 2.0), obese (aOR=2.1, 95% CI 1.5 to 3.0) and those with elevated total triglycerides (aOR=1.3, 95% CI 1.1 to 1.5). Similar risk factors were identified for UDD, with the addition of hypertension (aOR=1.6, 95% CI 1.3 to 2.0) and high waist circumference (aOR=2.0, 95% CI 1.5 to 2.7).

The high prevalence of pre-diabetes and UDD in Cambodia is a pressing public health concern. Urgent and intensive interventions are needed to effectively prevent and manage T2D, particularly among urban residents, older persons and individuals with metabolic risk factors.

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