Evidence map›Paper›PMID 40461987›Full record

ArticleBMC geriatrics2025

Hypertension and cognitive impairment among older persons in rural Northern Uganda: a cross-sectional study.

Joel Oyugi, Jonathan Izudi, Francis Bajunirwe

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Article in BMC geriatrics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Joel OyugiDepartment of Community Health, Mbarara University of Science and Technology, P.O. Box 1410, Mbarara, Uganda.
Jonathan IzudiDepartment of Community Health, Mbarara University of Science and Technology, P.O. Box 1410, Mbarara, Uganda.
Francis BajunirweDepartment of Community Health, Mbarara University of Science and Technology, P.O. Box 1410, Mbarara, Uganda. fbaj@yahoo.com.

Funding

Alzheimer's Association Alzheimer's and Dementia Research Training Program Award 24CBIDR-1188506
6 · The paper itself

Abstract

backgroundHypertension is common among older adults and negatively affects cognitive function. Available data on this association is mostly from resource-rich settings and has been understudied in resource-limited settings especially rural areas where the majority of older persons live. We examined the association between hypertension and cognitive impairment in older persons in Kole, a rural district in Uganda, and examined whether sex modifies the association.

methodsWe conducted a community-based cross-sectional study among older persons aged ≥ 60 years in rural northern Uganda, using a multi-stage sampling approach. The primary exposure was hypertension measured by systolic (≥ 140 mmHg) or diastolic blood pressure (≥ 90 mmHg), or being on anti-hypertensive medication. The dichotomous outcome was cognitive impairment determined by Montreal Cognitive Assessment scores < 26. We used the modified Poisson regression with robust standard errors for the analysis, applying a 5% significance level.

resultsWe studied 420 participants and found 288 (68.6%) had hypertension while 213 (50.7%) had some cognitive impairment. The overall mean age was 68.4 ± 7.2 years, the mean systolic blood pressure was 138.1 ± 23.1 mmHg while diastolic blood pressure was 85.4 ± 11.9 mmHg, and the mean MOCA score was 17.6 ± 7.2. Hypertension was associated with cognitive impairment (adjusted prevalence risk [aPR] 1.26, 95% CI 1.01-1.57), with 4-5 people in the household (aPR 0.80, 95% CI 0.64-0.99), no smoking history (aPR 0.57, 95% CI 0.43-0.76), and dissatisfaction with one's health (aPR 1.68, 95% CI 1.27-2.21) and satisfaction with the ability to perform usual domestic duties (aPR 0.74, 95% CI 0.55-0.99) being associated. In a sex-stratified analysis, men with hypertension were more likely to experience cognitive impairment (aPR 2.13, 95% CI 1.33-3.40), compared to those with normal blood pressure but there was no significant association among women (aPR 0.97, 95% CI 0.96-1.24).

conclusionOlder persons with hypertension were more likely to experience cognitive impairment than those without. In a sex stratied analysis, this observation persists among men but disappears among women. Our results suggest a need to raise awareness and consider regular blood pressure measurement and control in older adults. We recommend longitudinal studies to examine temporality and suggest blood pressure interventions to prevent cognitive impairment in older age.

Indexed as

Cognitive DysfunctionHypertensionRural PopulationAgedAged, 80 and overCross-Sectional StudiesFemaleHumansMaleMiddle AgedUgandaAnd UgandaCognitive impairmentHypertensionOlder personsRural

Identifiers

PMID40461987
PMCPMC12131620

What Socratic holds

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LicenceCC BY-NC-ND
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.