Evidence mapPaperPMID 41361808Full record

ArticleBMC public health2025

Mediating pathways between area-level deprivation and hypertension in Nepal: the role of nutritional status, food insecurity, and health behaviors.

Ishor Sharma, M Karen Campbell, Yun-Hee Choi, Isaac Luginaah, Jason Mulimba Were, Juan-Camilo Vargas-Gonzalea, Saverio Stranges

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Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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7 authors.

Ishor SharmaDepartment of Epidemiology and Biostatistics, Western University, London, ON, Canada. isharm9@uwo.ca.
M Karen CampbellDepartment of Epidemiology and Biostatistics, Western University, London, ON, Canada.
Yun-Hee ChoiDepartment of Epidemiology and Biostatistics, Western University, London, ON, Canada.
Isaac LuginaahDepartment of Geography, Western University, London, ON, Canada.
Jason Mulimba WereDepartment of Epidemiology and Biostatistics, Western University, London, ON, Canada.
Juan-Camilo Vargas-GonzaleaDepartment of Epidemiology and Biostatistics, Western University, London, ON, Canada.
Saverio StrangesDepartment of Epidemiology and Biostatistics, Western University, London, ON, Canada.

Funding

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6 · The paper itself

Abstract

backgroundHypertension is a major contributor to global disease burden, and the prevalence is associated to various social determinants, including area-level deprivation. However, the mechanisms underlying this association remain unclear, particularly in low- and middle-income countries (LMICs). This study explores how household food insecurity, individual behaviors (smoking and alcohol use), and nutritional status may mediate the relationship between area-level deprivation and hypertension in Nepal.

methodsWe used nationally representative data from the 2016 Nepal Demographic and Health Survey. Area-level deprivation was measured using a validated 15-item composite index. A two-level structural equation model was employed to analyze both the direct and indirect (mediated) relationships between deprivation and hypertension, with individuals (aged ≥ 15 years) and households nested within geographic clusters/areas.

resultsThe overall prevalence of hypertension was 22.9%, with a higher rate in less deprived (more affluent) areas (27.5%) compared to highly deprived ones (17.9%). When mediators were not included, area-level deprivation was inversely associated with hypertension. However, when potential mediators—Body Mass Index (BMI; as a proxy for nutritional status), household food insecurity, and individual behaviors (smoking and alcohol use) were included, the direct effect of deprivation on hypertension was no longer significant. BMI emerged as the only significant mediator, accounting for approximately 70% of the total indirect effect. Food insecurity and individual behaviors did not significantly mediate the relationship; although, food insecurity was associated with lower hypertension risk and individual health behaviors (smoking and alcohol use) with higher risk at the individual level.

conclusionIn the context of Nepal, hypertension is more prevalent in affluent areas, and BMI- a proxy for nutritional status significantly mediates the link between area-level deprivation and hypertension risk. These findings highlight the role of nutritional transitions in LMICs and the need for context-specific public health strategies targeting both environmental and individual-level factors.

Indexed as

Food InsecurityHealth BehaviorHypertensionNutritional StatusAdolescentAdultFemaleHealth SurveysHumansMaleMiddle AgedNepalPovertyPrevalenceSocioeconomic Disparities in HealthYoung AdultArea-level deprivationHypertensionMultilevel-Mediation

Identifiers

PMID41361808
PMCPMC12802185

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