Peterson 2008.

Study characteristics
Methods	Improving diabetes care in practice: findings from the TRANSLATE trial Cluster‐RCT (24 clusters with 238 providers), conducted in community care practices, USA Two arms: 1. Control clinics (control arm) and 2. Intervention clinics (intervention arm)
Participants	Control arm N: 3819 Intervention arm N: 4588 Diabetes type: type 2 Mean age: 62.8 ± 0.9 % Male: 50.3 Longest follow‐up: 12 months
Interventions	Control arm: 1) Audit and feedback Intervention arm: 1) Audit and feedback 2) Electronic patient registry 3) Clinician education 4) Clinician reminders 5) Patient reminders
Outcomes	1) Retinopathy screening (eye exam) 2) Foot screening 3) Renal screening (microalbumin) 4) HbA1c 5) SBP 6) LDL 7) Controlled hypertension (≤ 130 mmHg baseline and ≤ 140 mmHg final)
Funding source	This study was funded by the National Institute of Diabetes, Digestive, and Kidney Disorders, National Institutes of Health Grant 1 R18 DK061709‐01A1, and the National Institutes of Health under Contract HHSN268200425212C, “Re‐engineering the Clinical Research Enterprise”
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Only says statistician.
Allocation concealment (selection bias)	Low risk	Information not available.
Provider's baseline characteristics (selection bias)	High risk	Not reported.
Patient's baseline characteristics (selection bias)	Unclear risk	Table 2 ‐ no education reported, age and gender P > 0.05.
Patient's baseline outcomes (selection bias)	High risk	Retinopathy statistics significant.
Incomplete outcome data (attrition bias)	Low risk	Information not available.
Blinding of participants and personnel (performance bias) and of outcome assessors (detection bias)	Low risk	Information not available.
Selective reporting (reporting bias)	Low risk	Information not available.
Risk of contamination (other bias)	Low risk	Information not available.
Other bias	Low risk	Information not available.