Structured population data were available for 3 of 3 supporting studies. 1 study described participants with type 2 diabetes. 2 studies described adult participants.

1 supporting study does not have a displayable topic-matched quantitative effect.

Evidence uses heterogeneous comparison contexts: other, usual_care.

1 supporting study has high, serious, critical, unclear, or unavailable risk-of-bias information.

Available source content was suppressed because validation identified a conflict.

Core clinician-reference fields are available or not applicable.

Twelve group-based sessions and two individual counselling sessions over 12 months, delivered by trained community volunteers

Co-HELP community-based lifestyle intervention

Usual care

Authoritative quality diagnostic: invalid or missing value.

Community lifestyle programme improves multiple diabetes risk factors in adults with prediabetes

Control group (CON)

Patients received 1 month’s theoretical and practical counselling once a year for 3 years.

Intervention group (INT)

Three hundred physically inactive and sedentary patients were randomized 1:1 to receive 1 month’s theoretical and practical counselling once a year (intervention group, INT) or standard care (control group, CON) for 3 years.

Patients received standard care for 3 years.

Counseling Improves Well-Being and Quality of Life in Type 2 Diabetes

One individual and ten group sessions focused on lifestyle changes were provided followed by six telephone sessions and two motivational letters over a period of 10 months; free physical activity sessions were offered twice a week from week four

DE-PLAN lifestyle intervention programme

Lifestyle programme linked to lasting weight loss in some adults at high diabetes risk

Structured population data were available for 4 of 4 supporting studies. 1 study described participants with type 2 diabetes. 3 studies described adult participants.

1 relevant study has unresolved authoritative design evidence and does not contribute to design-specific or RoB-specific claims.

Evidence uses heterogeneous comparison contexts: baseline_within_group, usual_care.

2 of 4 studies with duration data have follow-up of 12 weeks or less.

Structured population data were available for 4 of 4 supporting studies. Diabetes type was heterogeneous: 1 studies with type 1 diabetes, 1 studies with type 2 diabetes. Age groups were heterogeneous: 1 studies with adult participants, 1 studies with youth participants.

2 relevant studies have unresolved authoritative design evidence and do not contribute to design-specific or RoB-specific claims.

2 supporting studies do not have a displayable topic-matched quantitative effect.

2 supporting studies have high, serious, critical, unclear, or unavailable risk-of-bias information.

Lifestyle intervention for prediabetes × Physical activity level (MET-minutes per week)

Available supporting studies

Community lifestyle programme improves multiple diabetes risk factors in adults with prediabetes

Counseling Improves Well-Being and Quality of Life in Type 2 Diabetes

Lifestyle programme linked to lasting weight loss in some adults at high diabetes risk