Evidence map›Paper›PMID 29225895›Full record

ArticleBMJ open diabetes research & care2017

Higher health literacy is associated with better glycemic control in adults with type 1 diabetes: a cohort study among 1399 Danes.

Kasper Olesen, Anne Louise F Reynheim, Lene Joensen, Martin Ridderstråle, Lars Kayser, Helle T Maindal, Richard H Osborne, Timothy Skinner, Ingrid Willaing

Abstract read
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Article in BMJ open diabetes research & care, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
–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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Health Literacy and Type 1 Diabetes Mellitus: A Mixed Method Study.Health literacy research and practice · 2026
    Article
  5. Article
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  9. Observational
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  11. Health Literacy in People with Type 1 Diabetes: A Scoping Review.International journal of environmental research and public health · 2025
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  12. Article
  13. Health Literacy Among Young People With Type 1 Diabetes: A Qualitative Study of Patient Involvement.Diabetes spectrum : a publication of the American Diabetes Association · 2025
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  16. Review
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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

9 authors.

Kasper OlesenSteno Diabetes Center Copenhagen, Gentofte, Denmark.
Anne Louise F ReynheimSteno Diabetes Center Copenhagen, Gentofte, Denmark.
Lene JoensenSteno Diabetes Center Copenhagen, Gentofte, Denmark.
Martin RidderstråleSteno Diabetes Center Copenhagen, Gentofte, Denmark.
Lars KayserDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.
Helle T MaindalSteno Diabetes Center Copenhagen, Gentofte, Denmark.
Richard H OsborneDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.
Timothy SkinnerSteno Diabetes Center Copenhagen, Gentofte, Denmark.
Ingrid WillaingSteno Diabetes Center Copenhagen, Gentofte, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimSelf-management of diabetes is influenced by a range of factors including the ability to access, understand, appraise, and use of health information in everyday life, which can collectively be called health literacy. We investigated associations between nine domains of health literacy and HbA1c level in people with type 1 diabetes.

methodsA cross-sectional study was conducted with 1399 people with type 1 diabetes attending a Danish specialist diabetes clinic. Health literacy was assessed using the nine-domain Health Literacy Questionnaire. The association between health literacy and HbA1c was analyzed using linear regression with adjustment for age, sex, educational attainment and diabetes duration.

resultsOf the 1399 participants, 50% were women, mean age was 54 years, and mean HbA1c was 61 mmol/mol (7.8%). Higher health literacy scores were associated with lower HbA1c levels across eight of nine health literacy domains. This association remained significant after adjusting for educational attainment. Among the domains, 'Actively managing my health' had the strongest impact on HbA1c. This was in turn predicted by 'Appraising health information', 'Having sufficient information to manage health', and 'Social support for health'.

conclusionsHigher health literacy levels are associated with lower HbA1c regardless of educational background. This study highlights the importance of healthcare provision to respond to the health literacy levels of people with diabetes and to the possible need to provide program designed to enhance health literacy.

Indexed as

Glycemic ControlHba1cHealth Literacy

Identifiers

PMID29225895
PMCPMC5706486

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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.