A Group-based Treatment of Overweight and Obesity in Primary Care

Study Overview
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Brief Summary
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Overweight and obesity is a growing problem in the world. Today more than 50 % of all people over 18 years in Sweden are overweight or obese. Main reasons for this are changes in lifestyle habits regarding diet and physical exercise. Overweight and obesity increases risk of different diseases such as type 2 diabetes, arthrosis and cancer; it also affects quality of life. Losing 5-10 % of your body weight improves metabolic health and quality of life. Lifestyle changes are very important in order to lose weight but it can be challenging to carry through with these changes on your own without support. In the primary care in Region Orebro län a group treatment, Step by step, has been in use since 2010. It comprises of six group sessions over 6-8 months with different themes such as diet, physical exercise and stress. Between the group sessions there are home assignments, such as writing a diet or exercise diary. This observational study will evaluate Step by step and the effect the group treatment has on the participants' weight, dietary habits, physical activity, quality of life, eating habits and metabolic health.

Official Title
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A Group-based Treatment of Overweight and Obesity in Primary Care

Conditions
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Overweight and Obesity

Intervention / Treatment
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* Behavioral: A group-based treatment of overweight and obesity


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 18 years and older BMI 30 or over BMI over 28 and under 30 with one or more of following: hypertension, prediabetes, type 2 diabetes, coronary heart disease, hyperlipidaemia, liver steatosis, sleep apnoea or polycystic ovary syndrome. Exclusion Criteria: Severe mental illness Previous or present eating disorder Pregnancy Breast feeding Serious cancer under treatment Use of weight-loss drugs Misuse of alcohol or drugs Type 1 diabetes Not being able to speak/read/write Swedish.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Group treatment in primary care<br>The intervention is a group treatment of overweight and obesity in primary care inspired by cognitive behavioural therapy. The main goal of the group treatment is for the participants to obtain and maintain healthy lifestyle habits, with emphasis on diet and physical activity. Every group has 8-12 participants and is led by two persons; the main group leader is either a primary care nurse or a physiotherapist with special training. The groups meet six times (2 hours every time) once a month over a 6-8 month period. Every group session has a set agenda with different topics, for example a healthy diet, recommended physical activity or how to deal with setbacks. Between group sessions there are home assignments. The home assignments are followed-up at the next session and participants are encouraged to share experiences with each other in order to inspire, challenge and help fellow group participants. Data is collected prior to the start of group treatment, after 6-8 and 12 months. | Behavioral: A group-based treatment of overweight and obesity<br>* The intervention is a group treatment of overweight and obesity in primary care inspired by cognitive behavioural therapy. The main goal of the group treatment is for the participants to obtain and maintain healthy lifestyle habits, with emphasis on diet and physical activity. Every group has 8-12 participants and is led by two persons; the main group leader is either a primary care nurse or a physiotherapist with special training. The groups meet six times (2 hours every time) once a month over a 6-8 month period. Every group session has a set agenda with different topics, for example a healthy diet, recommended physical activity or how to deal with setbacks. Between group sessions there are home assignments. The home assignments are followed-up at the next session and participants are encouraged to share experiences with each other in order to inspire, challenge and help fellow group participants. Data is collected prior to the start of group treatment, after 6-8 and 12 months.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Weight reduction in kg and % from baseline to 6-8 months and 12 months. | Measured in kilograms | Change from baseline to follow-up at 6-8 months and 12 months. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Dietary habits | Measured by a questionnaire from The National Board of Health and Welfare with 4 questions regarding how often the person eats vegetables, fruit, fish and sweets. | Change from baseline to follow-up at 6-8 months and 12 months. | 
| Change in Physical activity | Measured by accelerometer. | Change from baseline to follow-up at 6-8 months and 12 months. | 
| Change in general Health-related Quality of Life | Measured by Rand 36-item Health survey. Comprises 36 items that assess 8 health concepts: physical functioning, role limitations, social functioning, emotional wellbeing, energy/fatigue, pain and general health perceptions. Subscale scores range from 0 to 100, where higher scores represent better health status. | Change from baseline to follow-up at 6-8 months and 12 months. | 
| Change in Obesity-specific Health-related Quality of Life | Measured by the Obesity-Related Problems scale (OP V1.2). Comprises 8 items with a response choice from 1-4: 1 = Definitely bothered, 2 = Mostly bothered, 3 = Not so bothered and 4 = Definitely not bothered. The scores are transformed to a raw scale score that is then transformed to a 0-100 scale. A higher score indicates more psychosocial problems. | Change from baseline to follow-up at 6-8 months and 12 months. | 
| Change in Eating patterns | Measured by the Three-Factor Eating Questionnaire (TFEQ-R18v2). Comprises 18 items that measure 3 domains of eating behaviour: cognitive restraint, uncontrolled eating and emotional eating. The items are answered on a 4-point Likert scale. The raw scale scores are transformed to a 0 to 100 scale where higher scores indicate more uncontrolled, restraint and emotional eating. | Change from baseline to follow-up at 6-8 months and 12 months. | 
| Change in Systolic and Diastolic Blood pressure | Measured by measuring the blood pressure. | Change from baseline to follow-up at 6-8 months and 12 months. | 
| Change in blood glucose | Measured by blood test: glucose | Change from baseline to follow-up at 6-8 months and 12 months. | 
| Change in blood cholesterol | Measured by blood test:cholesterol | Change from baseline to follow-up at 6-8 months and 12 months. | 
| Change in blood triglycerides | Measured by blood test: triglycerides | Change from baseline to follow-up at 6-8 months and 12 months. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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overweight, obesity, group treatment, primary care