Trento 2008.

Study characteristics
Methods	A randomised controlled clinical trial of nurse‐, dietitian‐ and pedagogist‐led group care for the management of Type 2 diabetes Patient RCT, conducted in Italy Two arms: 1. Controls (control arm) and 2. Group care (intervention arm)
Participants	Control arm N: 24 Intervention arm N: 25 Diabetes type: type 2 Mean age: 66.3 ± 8.2 % Male: 59.2 Longest follow‐up: 24 months
Interventions	Control arm: 1) Patient education Intervention arm: 1) Team changes 2) Patient education 3) Promotion of self‐management
Outcomes	1) Antihypertensives (any), N users (%) Control arm: pre 18 (75), post 17 (81) Intervention arm: pre 10 (40), post 10 (42) 2) HbA1c, mean % (SD) Control arm: pre 8.0 (1.1), post 8.4 (1.3) Intervention arm: pre 8.0 (1.3), post 7.6 (0.8) 3) SBP, mean mmHg (SD) Control arm: pre 144.8 (23.6), post 150.0 (30.0) Intervention arm: pre 145.0 (22.7), post 135.0 (23.5) 4) DBP, mean mmHg (SD) Control arm: pre 80.4 (10.7), post 76.0 (11.8) Intervention arm: pre 81.0 (11.5), post 76.0 (9.8)
Funding source	"This article was supported by funds from the University of Turin (fondi 60%)".
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Information not available.
Allocation concealment (selection bias)	Unclear risk	Information not available.
Patient's baseline characteristics (selection bias)	Low risk	Information not available.
Patient's baseline outcomes (selection bias)	Low risk	Information not available.
Incomplete outcome data (attrition bias)	Low risk	Information not available.
Blinding of participants and personnel (performance bias) and of outcome assessors (detection bias)	High risk	Information not available.
Selective reporting (reporting bias)	Low risk	Information not available.
Risk of contamination (other bias)	Unclear risk	Information not available.
Other bias	Low risk	Information not available.