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Background <p>The prevalence of raised blood pressure (RBP) in Cambodia has nearly doubled over the past decade. This study aimed to examine the associated factors and quantify the magnitude of educational and economic inequalities in relation to the prevalence of RBP among Cambodian adults.</p> Methods <p>Data were obtained from the 2023 STEPwise approach to noncommunicable disease risk factor surveillance. The study included 3,186 adults aged 18–69 years. Multilevel logistic regression models were used to identify potential associated factors for RBP. The magnitude of educational and economic inequalities was assessed using the regression-based slope index of inequality (SII) and relative index of inequality (RII).</p> Results <p>Overall, the prevalence of RBP was 16.2% (95% confidence interval [CI]: 14.5%–18.1%). The main associated factors for RBP were age 40–49 years (odds ratio [OR]: 4.97, 95% CI: 2.51–9.85), 50–59 years (OR:10.67, 95%CI: 5.52–20.62), and 60–69 years (OR:12.92, 95%CI: 6.55–25.48), overweight (OR:1.66, 95%CI:1.19–2.33), obesity (OR: 3.52, 95% CI: 2.38–5.21), and comorbid diabetes (OR: 2.53, 95% CI:1.81–3.54). Female sex (OR: 0.39, 95% CI: 0.25–0.63), current usage of smoking tobacco products (OR: 0.47, 95% CI: 0.27–0.83), adequate consumption of fruits and vegetables (OR: 0.63, 95%CI: 0.46–0.85), and underweight (OR:0.33, 95%CI:0.18–0.61) were associated with reduced risk of RBP. Substantial educational inequality was observed in relation to the prevalence of RBP, with RBP disproportionately affecting individuals without formal schooling at the national (SII: -18.9, 95% CI: -24.80 to -12.90, <i>p</i> &lt; 0.001), rural-urban, and regional levels. Nationally, individuals with higher education levels were 67% less likely to have RBP than those without formal schooling (RII: 0.33, 95% CI: 0.17–0.66). Significant absolute economic inequalities in RBP prevalence, to the disadvantage of poor households, were also observed among urban residents (SII: -10.8, 95% CI: -20.10 to -1.50, <i>p</i> &lt; 0.05) as well as those living in the plateau and mountain regions (SII: -13.8, 95% CI: -26.10 to -1.40, <i>p</i> &lt; 0.05).</p> Conclusion <p>RBP remains a major public health challenge in Cambodia, with substantial educational and context-specific economic inequalities. Addressing these social determinants through equity-oriented, context-sensitive interventions is essential to reduce the burden of RBP and prevent cardiovascular diseases in the Cambodian population.</p>

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Associated factors and educational and economic inequalities with raised blood pressure in Cambodia: analysis of the data from a national household survey

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  • 发表日期：

    2026年2月9日

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  • Maly Phy,
  • Shafiur Rahman,
  • Mahfuzur Rahman,
  • Ada Moadsiri,
  • Sam Ath Khim,
  • Chhinh Liv,
  • Srean Chhim,
  • Savina Chham,
  • Rei Haruyama

摘要

Background

The prevalence of raised blood pressure (RBP) in Cambodia has nearly doubled over the past decade. This study aimed to examine the associated factors and quantify the magnitude of educational and economic inequalities in relation to the prevalence of RBP among Cambodian adults.

Methods

Data were obtained from the 2023 STEPwise approach to noncommunicable disease risk factor surveillance. The study included 3,186 adults aged 18–69 years. Multilevel logistic regression models were used to identify potential associated factors for RBP. The magnitude of educational and economic inequalities was assessed using the regression-based slope index of inequality (SII) and relative index of inequality (RII).

Results

Overall, the prevalence of RBP was 16.2% (95% confidence interval [CI]: 14.5%–18.1%). The main associated factors for RBP were age 40–49 years (odds ratio [OR]: 4.97, 95% CI: 2.51–9.85), 50–59 years (OR:10.67, 95%CI: 5.52–20.62), and 60–69 years (OR:12.92, 95%CI: 6.55–25.48), overweight (OR:1.66, 95%CI:1.19–2.33), obesity (OR: 3.52, 95% CI: 2.38–5.21), and comorbid diabetes (OR: 2.53, 95% CI:1.81–3.54). Female sex (OR: 0.39, 95% CI: 0.25–0.63), current usage of smoking tobacco products (OR: 0.47, 95% CI: 0.27–0.83), adequate consumption of fruits and vegetables (OR: 0.63, 95%CI: 0.46–0.85), and underweight (OR:0.33, 95%CI:0.18–0.61) were associated with reduced risk of RBP. Substantial educational inequality was observed in relation to the prevalence of RBP, with RBP disproportionately affecting individuals without formal schooling at the national (SII: -18.9, 95% CI: -24.80 to -12.90, p < 0.001), rural-urban, and regional levels. Nationally, individuals with higher education levels were 67% less likely to have RBP than those without formal schooling (RII: 0.33, 95% CI: 0.17–0.66). Significant absolute economic inequalities in RBP prevalence, to the disadvantage of poor households, were also observed among urban residents (SII: -10.8, 95% CI: -20.10 to -1.50, p < 0.05) as well as those living in the plateau and mountain regions (SII: -13.8, 95% CI: -26.10 to -1.40, p < 0.05).

Conclusion

RBP remains a major public health challenge in Cambodia, with substantial educational and context-specific economic inequalities. Addressing these social determinants through equity-oriented, context-sensitive interventions is essential to reduce the burden of RBP and prevent cardiovascular diseases in the Cambodian population.