Please assess the completion status of the following clinical trial:

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

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
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.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Group treatment in primary care (Type: EXPERIMENTAL): 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.

Based on this trial design, predict the completion outcome and termination type (if applicable).