Ralston 2009.

Study characteristics
Methods	Web‐based collaborative care for type 2 diabetes: a pilot randomized trial Patient RCT, conducted in University of Washing General Internal Medicine Clinic, USA Two arms: 1. Usual care (control arm) and 2. Intervention (intervention arm)
Participants	Control arm N: 41 Intervention arm N: 42 Diabetes type: type 2 Mean age: 57.3 ± NR % Male: 50.6 Longest follow‐up: 12 months
Interventions	Control arm: None Intervention arm: 1) Case management 2) Team changes 3) Electronic patient registry 4) Clinician reminders 5) Facilitated relay of clinical information 6) Patient education 7) Promotion of self‐management 8) Patient reminders
Outcomes	1) HbA1c, mean % (SD) Control arm: pre 7.9 (NR), post 8.1 (NR) Intervention arm: pre 8.2 (NR), post 7.3 (NR)
Funding source	This study was supported by a grant from the Center for Health Management Research. The Center for Health Management Research had no role in the design and conduct of the study, in the collection, analysis and interpretation of the data, or in the preparation, review or approval of the manuscript.
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Information not available.
Allocation concealment (selection bias)	Low 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)	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	Unclear risk	Study funded by an industry; author was consultant of the industry.