Evidence map›Paper›PMID 26491815›Full record

Trial reportPreventing chronic disease2015

Long-Term Impact of a Community Health Worker Intervention on Diabetes Control in American Samoa.

Mayuree Rao, Judith D DePue, Shira Dunsiger, Mohammad Elsayed, Ofeira Nu'usolia, Stephen T McGarvey

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Preventing chronic disease, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. How patient and community involvement in diabetes research influences health outcomes: A realist review.Health expectations : an international journal of public participation in health care and health policy · 2019
    Review
  5. Review
  6. 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

6 authors.

Mayuree RaoWarren Alpert Medical School of Brown University, 222 Richmond St, Box G-9230A, Providence, RI 02903. Email: mayuree_rao@brown.edu.
Judith D DePueWarren Alpert Medical School of Brown University, Providence, Rhode Island, and Centers for Behavioral and Preventive Medicine, Miriam Hospital, Providence, Rhode Island.
Shira DunsigerWarren Alpert Medical School of Brown University, Providence, Rhode Island, and Centers for Behavioral and Preventive Medicine, Miriam Hospital, Providence, Rhode Island.
Mohammad ElsayedWarren Alpert Medical School of Brown University, Providence, Rhode Island.
Ofeira Nu'usoliaTafuna Clinic, American Samoa Community Health Centers, Department of Health, American Samoa.
Stephen T McGarveyInternational Health Institute and Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island.

Funding

Diabetes Care in American SamoaR18DK075371 · NIDDK · BROWN UNIVERSITY · PI MCGARVEY, STEPHEN T. · 2006 to 2010
$2.5M
NIDDK NIH HHS R18 DK075371NIDDK NIH HHS R18-DK075371
6 · The paper itself

Abstract

introductionDiabetes Care in American Samoa (DCAS) was a randomized controlled trial of a 12-month intervention facilitated by community health workers (CHWs) that demonstrated improved HbA1c levels compared with usual care at trial completion. We sought to evaluate the long-term impact of this intervention on diabetes control.

methodsWe retrospectively collected HbA1c measurements from medical records of DCAS participants (n = 268). The study group received the intervention during the trial, and the control group received the intervention after the trial. We used mixed-effects longitudinal regression models to assess change in HbA1c within each trial arm during 3 time periods: DCAS (12 months of the study group's intervention), the first year after DCAS (control group's intervention), and the second year after DCAS. Models were adjusted for baseline characteristics that differed significantly for participants with a low number of HbA1c measurements from those with a high number of HbA1c measurements.

resultsAfter adjustment for confounders, the experiment group experienced a decrease in HbA1c of 0.28 units per year (95% confidence interval [CI], -0.64 to 0.07) during DCAS (intervention). HbA1c decreased by 0.88 units per year (95% CI, -1.31 to -0.45) during the year after the intervention. No significant change was observed the following year. HbA1c of the control group did not significantly change during DCAS (usual care) but decreased by 1.31 units per year (95% CI, -1.72 to -0.91) during its intervention. During the year after the control group's intervention, HbA1c increased by 1.18 units per year (95% CI, 0.42 to 1.93).

conclusionBoth groups had initial improvements in glycemic control, but HbA1c later plateaued or increased. These results suggest that time-limited CHW programs improve diabetes control in the short term, but ongoing programs are needed for sustained impact.

Indexed as

Community Health WorkersAdultAgedAmerican SamoaBlood GlucoseDiabetes Mellitus, Type 2FemaleGlycated HemoglobinHumansMaleMiddle AgedOutcome Assessment, Health CareRegression AnalysisRetrospective StudiesSelf CareBlood GlucoseGlycated Hemoglobin

Identifiers

PMID26491815
PMCPMC4617456

What OpenQuestion holds

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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.