Evidence map›Paper›PMID 42021162›Full record

Trial reportBMC primary care2026

Evaluating the outcomes of a community-based health literacy intervention for hypertension and diabetes in Harare, Zimbabwe: a cluster randomized controlled trial.

Nyaradzai Arster Katena, Shepherd Shamu, Golden Tafadzwa Fana, Justen Manasa, Simbarashe Rusakaniko

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC primary care, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Nyaradzai Arster KatenaGlobal Public Health and Family Medicine Department, Faculty of Medicine & Health Sciences, University of Zimbabwe, P.O Box A178, Harare, Zimbabwe. nyarikatena@gmail.com.
Shepherd ShamuGlobal Public Health and Family Medicine Department, Faculty of Medicine & Health Sciences, University of Zimbabwe, P.O Box A178, Harare, Zimbabwe.
Golden Tafadzwa FanaDepartment of Medicine, Faculty of Medicine & Health Sciences, University of Zimbabwe, Harare, Zimbabwe.
Justen ManasaDepartment of Laboratory Diagnostic and Investigative Sciences, Faculty of Medicine & Health Sciences, University of Zimbabwe, Harare, Zimbabwe.
Simbarashe RusakanikoGlobal Public Health and Family Medicine Department, Faculty of Medicine & Health Sciences, University of Zimbabwe, P.O Box A178, Harare, Zimbabwe.

Funding

Enhancing Non-communicable diseases Research and Innovation Capacity in Harare, Zimbabwe (ENRICH)D43TW011968 · FIC · COLLEGE OF HEALTH SCIS UNIV OF ZIMBABWE · PI Justen Manasa · 2021 to 2026
$1.4M
FIC NIH HHS D43 TW011968
6 · The paper itself

Abstract

introductionHealth literacy interventions delivered by community health workers-(CHWs) can significantly improve lifestyle modification and medication adherence for non-communicable diseases. This study evaluated the outcomes of a CHW-led health literacy intervention among diabetes and hypertension patients in Harare, Zimbabwe.

methodsA cluster randomized controlled trial was conducted across six clinics. The intervention included four structured education sessions and monthly home visits and was delivered over six months. Primary outcomes were adherence to lifestyle modifications and medication adherence; secondary outcomes were blood pressure and blood glucose control. Data analysis was done under the intention to treat principle. Differences between groups were compared using chi-square and t-tests.

resultsSix hundred and forty-three (643) participants were recruited (intervention = 321; control = 322). At follow-up, adherence to lifestyle modifications was significantly higher in the intervention compared to the control group for weight management (70% vs. 40%,); low-salt diet (65% vs. 36%); low-fat diet (60% vs. 30%); physical activity (80% vs. 50%); alcohol moderation (85% vs. 70%); and fruit/vegetable intake (75% vs. 45%). Medication adherence (59% vs. 36%) and blood pressure control (62% vs. 41%) were higher in intervention compared to control group, but there were no significant differences in blood glucose control and adherence to non-smoking.

conclusionThe CHW-led health literacy intervention was associated with improvements in adherence to recommended lifestyle modifications, medication adherence, and blood pressure control. These findings support the integration of CHWs into NCD care models in urban Zimbabwe and other low resource settings.

Indexed as

Community Health WorkersDiabetes MellitusHealth LiteracyHypertensionAdherence InterventionsAdultFemaleHumansLife StyleMaleMedication AdherenceMiddle AgedPatient Education as TopicZimbabweCluster randomized controlled trialCommunity health workersHealth literacyHypertension and DiabetesLifestyle modificationZimbabwe

Identifiers

PMID42021162
PMCPMC13237942

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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 OpenQuestion graph.