The Effect of Structured Training on the Decision to Have a GDM Screening Test.

NCT07618286 | Completed

• 1 other identifier: 07.11.2018/141
• Study Type: interventional
• Target: 199
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this clinical trial is to evaluate the effectiveness of training pregnant women on the decision of having an oral glucose challenge test (GCT), which is recommended by a physician for screening of gestational diabetes mellitus (GDM). Primary hypothesis is that structured training is effective in increasing pregnant women's acceptance of gestational diabetes mellitus (GDM) screening. The effect of training on patients' decision-making regarding gestational diabetes mellitus (GDM) screening was planned to be evaluated. Participants in the control group received standard counseling about GDM screening. Participants in the intervention group received a structured, specific audiovisual educational program supported by a guidebook, lasting approximately 15-20 minutes.

Conditions

Gestational Diabetes Mellitus (GDM)

Keywords

gestational diabetes mellitus; glucose challenge test; health education

Outcome Measures

Primary Outcomes (1)

• The effectiveness of structured audiovisual training

  Information on whether participants had undergone the glucose challenge test (GCT) or had not undergone the GCT was obtained from medical records. Having undergone the GCT was coded as 1, and not having undergone the GCT was coded as 0. The effectiveness of the intervention was then evaluated by calculating the relative effectiveness increase, attributed effectiveness, and efficacy (protection) rate.

  Information on whether participants had undergone the glucose challenge test (GCT) or had not undergone the GCT was obtained from medical records within 2-16 weeks after the first examination.

Study Arms (2)

Routine counseling

NO INTERVENTION

Participants received routine verbal counseling regarding gestational diabetes mellitus (GDM) screening, and the glucose challenge test (GCT) was recommended.

Structured training

EXPERIMENTAL

Participants received a structured 15-20 minute audiovisual training program about gestational diabetes mellitus (GDM) screening.

Other: Structured training

Interventions

Structured training OTHER

The trainings lasted about 15 minutes and were applied in mutual communication with the questions of the participants. The materials that were used were an audiovisual aid/pictured guidebook prepared for this study and named the Gestational Diabetes Pregnant Education Guide and a transparent package containing 50 g glucose powder and a commercially packaged 50 g glucose drink package. The training guidebook was prepared by the authors. The educational materials were prepared by two obstetrics and gynecology specialists and one public health expert with over 15 years of experience in their fields. The guidebook was prepared in a PowerPoint program and consisted of 14 sheets and 28 pages. The odd-numbered pages were arranged to be seen and understood by the patient. The even-numbered pages contained the information to be explained by the educator. The guidebook was placed in a presentation folder that enabled face-to-face training.

Structured training

Eligibility Criteria

• Age: 18 Years+
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Pregnant women over the age of 18,
• Between the 24th and 28th weeks of gestation,
• Who could speak and be literate in Turkish.

You may not qualify if:

• Pregnant women diagnosed with diabetes before pregnancy,
• Patients with speech and hearing impairments, and those not literate in Turkish.

Sponsors & Collaborators

• Nazan Tarhan: lead
• Marmara University: collaborator

Study Sites (1)

Zeynep Kamil Maternity and Pediatric Research and Training Hospital

Istanbul, Üsküdar, 34668, Turkey (Türkiye)

Location

Related Publications (3)

• Stewart MA, McWhinney IR, Buck CW. The doctor/patient relationship and its effect upon outcome. J R Coll Gen Pract. 1979 Feb;29(199):77-81.

  PMID: 480298 BACKGROUND

• Li Z, Cheng Y, Wang D, Chen H, Chen H, Ming WK, Wang Z. Incidence Rate of Type 2 Diabetes Mellitus after Gestational Diabetes Mellitus: A Systematic Review and Meta-Analysis of 170,139 Women. J Diabetes Res. 2020 Apr 27;2020:3076463. doi: 10.1155/2020/3076463. eCollection 2020.

  PMID: 32405502 BACKGROUND

• Freinkel N, Metzger BE, Phelps RL, Dooley SL, Ogata ES, Radvany RM, Belton A. Gestational diabetes mellitus. Heterogeneity of maternal age, weight, insulin secretion, HLA antigens, and islet cell antibodies and the impact of maternal metabolism on pancreatic B-cell and somatic development in the offspring. Diabetes. 1985 Jun;34 Suppl 2:1-7. doi: 10.2337/diab.34.2.s1.

  PMID: 3888733 BACKGROUND

Related Links

• The link to the Sustainable Development Goals Report

MeSH Terms

Conditions

Diabetes, Gestational; Health Education

Condition Hierarchy (Ancestors)

Pregnancy Complications; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Diabetes Mellitus; Glucose Metabolism Disorders; Metabolic Diseases; Nutritional and Metabolic Diseases; Endocrine System Diseases; Adherence Interventions; Medication Adherence; Patient Compliance; Patient Acceptance of Health Care; Treatment Adherence and Compliance; Health Behavior; Behavior

Study Officials

• Ayşe N Özaydın, Proff, MD, MPH

  Marmara University

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: OB-GYN, MPH, MD

Study Record Dates

• First Submitted: May 16, 2026
• First Posted: June 1, 2026
• Study Start: January 1, 2019
• Primary Completion: July 31, 2019
• Study Completion: July 31, 2019
• Last Updated: June 1, 2026

Record last verified: 2026-05

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)