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Research Summary
Analyzed using Evidence Intelligence™

Telemedicine support improves diabetes control

Powered by the Dediabetes Evidence Intelligence™ framework

Last updated July 7, 2026

Key finding

The intervention group showed significantly better HbA1c values compared to the control group at both 12 and 24 months (12 M: -0.52 (-0.73; -0.32), p < .000).

A study found that combining telephone coaching with telemedicine support significantly improved long-term glycemic control in individuals with type 2 diabetes.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

RCTs

Follow-up

Long-Term (1–5 y)

Risk of bias

Some Concerns

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Plain-language summary

What this paper says

A plain-language read of the study’s main message and where it applies.

Study focus

A study found that combining telephone coaching with telemedicine support significantly improved long-term glycemic control in individuals with type 2 diabetes.

Clinical relevance

Improving glycemic control is crucial for managing type 2 diabetes and preventing complications. This study suggests that integrating telemedicine with personalized coaching can be an effective strategy for enhancing patient outcomes, potentially leading to better long-term health and reduced healthcare costs.

Keep in mind

The effectiveness of the intervention remains unclear due to limited evidence. Sample size and demographic diversity may affect generalizability. Potential confounding factors were not fully controlled.

Published in

Journal Reference

Publication details and source links for this paper.

Annalena D, Katja VS, Martin H, Susanne Z, M. CP, Christiane W. Combined telephone coaching with telemedicine support improves long-term glycemic control in type 2 diabetes. Journal of Diabetes and Metabolic Disorders. 2023;23(1):519-532. doi:10.1007/s40200-023-01290-6

View DOIView on PubMedView on PMC

Main Effects

The intervention group demonstrated a significant reduction in HbA1c at 12 months (-0.52%, p < .000).

At 24 months, the intervention group continued to show better HbA1c levels (-0.38%, p = .001).

No significant change in BMI was observed in the intervention group at 12 months.

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Lifestyle intervention for prediabetes and BMI, HbA1c.

This study contributes evidence to

Intervention

Lifestyle intervention for prediabetes

Outcome

BMI

Evidence topic

HbA1c Reduction

Primary intervention

Lifestyle intervention for prediabetes

Primary outcomes

  • BMI
  • HbA1c

Evidence topics

HbA1c ReductionWeight Loss

Primary intervention

Lifestyle intervention for prediabetes

Primary outcomes

BMIHbA1c

Evidence relationships

Intervention and outcome relationships this study adds to the evidence network.

2
Evidence pairs
2
Relationships
2
Evidence topics
contributes_evidence

Editorial context

Why this study matters

See why this paper is useful beyond its individual results.

Evidence network role

This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.

Moderate contributionModerate confidenceNetwork score: 56

2

Related topics

2

Evidence pairs

979

Related studies

High relevance in at least one topic

Why it is useful

  • Contributes to 2 evidence relationships
  • Includes primary outcome data
  • Linked to 2 direct semantic evidence topics

Topic contributions

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

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Primary evidence

Evidence topic

HbA1c Reduction

matched_outcome

Related evidence

Evidence topic

Weight Loss

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Core evidence

Study findings

The primary outcomes reported in this study.

BMI

Lifestyle intervention for prediabetes → BMI

Lifestyle intervention for prediabetes → BMI

Evidence Intelligence™
EvidenceScore™
87
Strong
ImpactScore™
67
Slightly Positive
ConsistencyScore™
56
generally_consistent
Supporting studies: Based on 9 studies
Add to Evidence Tracker

HbA1c

Lifestyle intervention for prediabetes → HbA1c

Lifestyle intervention for prediabetes → HbA1c

Evidence Intelligence™
EvidenceScore™
87
Strong
ImpactScore™
85
Very Positive
ConsistencyScore™
82
consistent
Supporting studies: Based on 17 studies
Add to Evidence Tracker

Evidence Library

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evidence suggest

Evidence Suggest

  • The intervention group had a 0.52% decrease in HbA1c at 12 months.
  • HbA1c levels remained significantly lower at 24 months with a 0.38% decrease.
  • No significant BMI changes were reported in the intervention group.
who this applies

Who this applies to

  • Adults diagnosed with type 2 diabetes.
  • Individuals seeking to improve their glycemic control through lifestyle changes.
keep in mind

Keep in Mind

  • Results may not apply to all populations due to sample characteristics.
  • The study did not measure long-term sustainability of the intervention effects.
  • Further research is needed to confirm findings and explore effectiveness in diverse settings.
between the lines

Between the Lines

  • The effectiveness of the intervention remains unclear due to limited evidence.
  • Sample size and demographic diversity may affect generalizability.
  • Potential confounding factors were not fully controlled.

Evidence Library

Build your evidence library

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Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

Powered by the Dediabetes Evidence Intelligence™ framework

This study contributes to evidence on Lifestyle intervention for prediabetes and HbA1c, Lifestyle intervention for prediabetes and Body Mass Index.

Related evidence relationships

Explore in Evidence Explorer

This study contributes to the evidence on the following intervention-outcome relationships.

Questions answered by this study

Generated from the study's connected evidence using Evidence Intelligence™.

Does Lifestyle intervention for prediabetes lower HbA1c?

Strong Evidence

Lifestyle intervention for prediabetes appears to lower HbA1c.

ConsistencyScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    HbA1c

    EvidenceScore™ Strong | EvidenceScore™ 87.4 | strong positive | ConsistencyScore™ Consistent | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
1 supporting study
View Full Evidence

Does Lifestyle intervention for prediabetes affect BMI?

Strong Evidence

Lifestyle intervention for prediabetes may affect BMI.

ConsistencyScore™: Results are generally consistent across studies.

Ranked evidence signals

  1. 1

    BMI

    EvidenceScore™ Strong | EvidenceScore™ 86.7 | weak positive | ConsistencyScore™ Generally Consistent | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
1 supporting study
View Full Evidence
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Next steps

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Evidence topics

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HbA1c Reduction Evidence HubWeight Loss Evidence Hub

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All studies on Lifestyle intervention for prediabetes and HbA1cAll studies on Lifestyle intervention for prediabetes and BMI

Related research

Read related research summaries.

Intensive lifestyle intervention may improve type 2 diabetes remission ratesHealthy lifestyle reduces diabetes risk in high genetic risk womenCommunity lifestyle programme improves multiple diabetes risk factors in adults with prediabetesEngagement in a prediabetes education programme is linked to lower type 2 diabetes riskHome-based intervention may help prevent diabetes in women with GDM

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