Last updated August 18, 2026
Key finding
GDM occurred in 10% of the intervention group compared to 24.4% of controls (p = 0.018).
Telephone-based lifestyle education for preventing gestational diabetes in high-risk pregnant women.
Quick read
The essential study design details in one scan.
EvidenceScore™
Moderate
Study type
RCTs
Follow-up
Medium-Term (3–12 mo)
Risk of bias
Some Concerns
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Plain-language summary
A plain-language read of the study’s main message and where it applies.
Study focus
Telephone-based lifestyle education for preventing gestational diabetes in high-risk pregnant women.
This study evaluated Telephone-based lifestyle education for preventing gestational diabetes in high-risk pregnant women.
Limitations were not clearly described in the extracted text.
Published in
Publication details and source links for this paper.
Zahra G, Nahal N, Atefeh Z. Telephone-based lifestyle education for preventing gestational diabetes in high-risk women: a randomized controlled trial. BMC Pregnancy and Childbirth. 2026;26:340. doi:10.1186/s12884-026-08830-x
Evidence network
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This study contributes evidence to Telephone-based lifestyle education for gestational diabetes prevention and BMI, Blood glucose, Gestational diabetes mellitus incidence, and 1 more.
This study contributes evidence to
Primary intervention
Telephone-based lifestyle education for gestational diabetes prevention
Primary outcomes
Primary intervention
Primary outcomes
Intervention and outcome relationships this study adds to the evidence network.
Editorial context
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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.
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Evidence pairs
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Contributes evidence
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Contributes evidence
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Contributes evidence
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Primary evidence
Evidence relationship
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Evidence relationship
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Evidence relationship
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Core evidence
The primary outcomes reported in this study.
Telephone-based lifestyle education for gestational diabetes prevention → Blood glucose
Telephone-based lifestyle education for gestational diabetes prevention → Blood glucose
Telephone-based lifestyle education for gestational diabetes prevention → BMI
Telephone-based lifestyle education for gestational diabetes prevention → BMI
Telephone-based lifestyle education for gestational diabetes prevention → Gestational diabetes mellitus incidence
Telephone-based lifestyle education for gestational diabetes prevention → Gestational diabetes mellitus incidence
Telephone-based lifestyle education for gestational diabetes prevention → Physical activity level (MET-minutes per week)
Telephone-based lifestyle education for gestational diabetes prevention → Physical activity level (MET-minutes per week)
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Explore related studies, evidence collections, and research questions.
Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Diabetes Self-Management Education and Support (DSMES) Programs and Fasting Glucose, Diabetes Self-Management Education and Support (DSMES) Programs and Body Mass Index.
This study contributes to the evidence on the following intervention-outcome relationships.
Behavioral & Lifestyle
Behavioral & Lifestyle
Curated evidence collections and hubs this study is part of.
All studies measuring Body Mass Index
Measures Body Mass Index as a key outcome.
All studies on Diabetes Self-Management Education and Support (DSMES) Programs
Contributes to Diabetes Self-Management Education and Support (DSMES) Programs evidence base.
All studies measuring Fasting Glucose
Measures Fasting Glucose as a key outcome.
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1 results
1 results
1 results
1 results
1 results
Generated from the study's connected evidence using Evidence Intelligence™.
Diabetes Self-Management Education and Support (DSMES) Programs may improve Fasting Glucose.
ConsistencyScore™: Results are mixed and should be interpreted cautiously.
Ranked evidence signals
Blood glucose
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | neutral | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is cautious because the available studies report mixed findings.
Limitations
Diabetes Self-Management Education and Support (DSMES) Programs may improve Body Mass Index.
ConsistencyScore™: Results are generally consistent across studies.
Ranked evidence signals
BMI
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on 15 supporting studies with generally consistent results and a positive effect signal.
Limitations
Diabetes Self-Management Education and Support (DSMES) Programs may improve Physical Activity Levels.
ConsistencyScore™: Results are mixed and should be interpreted cautiously.
Ranked evidence signals
Physical activity level (MET-minutes per week)
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | neutral | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is cautious because the available studies report mixed findings.
Limitations
Diabetes Self-Management Education and Support (DSMES) Programs appears to improve Diabetes Incidence and Prevention.
ConsistencyScore™: Results are consistent across studies.
Ranked evidence signals
Gestational diabetes mellitus incidence
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on 3 supporting studies with consistent results and a positive effect signal.
Limitations
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