Couple-based Collaborative Lifestyle Intervention: Couples will receive a 3-month lifestyle intervention delivered through health education posts, short videos, and instant messages. The intervention addresses healthy diet, physical activity, and stress management, with smoking cessation and alcohol reduction provided when applicable. Couple-specific components focus on role allocation, couple communication, and time management.
Woman-only Lifestyle Intervention: Women will receive a 3-month lifestyle intervention delivered through health education posts focusing on healthy diet, physical activity, and stress management, with smoking cessation and alcohol reduction provided when applicable. The intervention does not include the couple collaboration and support components provided in the experimental group.
Study summary
The goal of this clinical trial is to evaluate the effects of a couple-based collaborative lifestyle intervention among women with a history of gestational diabetes. The main questions it aims to answer are:
Does the intervention improve body mass index and 2-hour plasma glucose after an oral glucose tolerance test? Does the intervention improve health behaviors, psychological well-being, self-efficacy, couple functioning, and life satisfaction?
Researchers will compare a couple-based collaborative lifestyle intervention with a woman-only lifestyle intervention to determine whether adding spousal collaboration and support leads to greater improvements.
Participants will:
Receive healthy lifestyle education posts for 3 months. In the couple-based group, also receive instant messages on behavioral promotion and couple collaboration and support videos.
Eligibility
Sex
ALL
Min age
20 Years
Max age
40 Years
Healthy volunteers
Accepted
Inclusion Criteria:
1. For women:
* 20 to 40 years of age.
* Diagnosed with gestational diabetes mellitus during the most recent pregnancy.
* Have basic literacy and sufficient cognitive and physical ability to participate in the study.
* Living with their spouse.
* Able to use a smartphone.
* Willing to participate in the study.
2. For spouses:
* Living with an eligible woman with a history of gestational diabetes mellitus.
* Have basic literacy and sufficient cognitive and physical ability to participate in the study.
* Able to use a smartphone.
* Willing to participate in the study.
Exclusion Criteria:
1. For women:
* Diabetes diagnosed before pregnancy or after delivery.
* Pregnant at the time of screening.
* Currently using medications that affect glucose metabolism or medications for weight loss.
* Cognitive impairment or a serious psychiatric disorder.
* A contraindication to postpartum exercise.
* Current participation in another lifestyle intervention program.
2. For spouses:
* A diagnosed major chronic disease, such as coronary heart disease or diabetes, or another serious physical illness.
* Cognitive impairment or a serious psychiatric disorder.
* Current participation in another lifestyle intervention program.
Women with a history of gestational diabetes mellitus and their spouses will be recruited during postpartum follow-up visits at the participating hospitals. Both members of the couple must meet their respective eligibility criteria.
Primary outcome measure(s)
2 h Oral Glucose Tolerance Test — Baseline and 6 months Two-hour plasma glucose will be measured 2 hours after a 75-g oral glucose load during an oral glucose tolerance test and reported in mmol/L.
Body Mass Index — Baseline, 3 months, and 6 months Body mass index will be calculated as weight in kilograms divided by height in meters squared (kg/m²).
Trial sites (3)
Facility
City
Region
Status
Changde First People's Hospital
Changde
Hunan
Changsha Central Hospital
Changsha
Hunan
General Hospital of Hunan University of Medicine
Huaihua
Hunan
More The Third Xiangya Hospital of Central South University trials in China
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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