Kwon 2004.

Study characteristics
Methods	Establishment of blood glucose monitoring system using the internet Patient RCT, conducted in an outpatient clinic at Kangnam St Mary's Hospital, South Korea Two arms: 1. Control (control arm) and 2. Intervention (intervention arm)
Participants	Control arm N: 55 Intervention arm N: 55 Diabetes type: type 2 Mean age: 54.1 ± 9.1 % Male: 60.9 Longest follow‐up: 3 months
Interventions	Control arm: None Intervention arm: 1) Team changes 2) Electronic patient registry 3) Facilitated relay of clinical information 4) Patient reminders
Outcomes	1) HbA1c, mean % (pre: SD, post: SE) Control arm: pre 7.2 (1.2), post 7.6 (0.1) Intervention arm: pre 7.6 (1.4), post 6.9 (0.1)
Funding source	This work was supported by the 2001 Korea Health Promotion Research Program and the Korea Health 21 R&D Project, Ministry of Health and Welfare of Republic of Korea Grant 02‐PJ1‐PG3‐21906‐0004
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Information not available.
Allocation concealment (selection bias)	Unclear risk	Not reported.
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	< 10% lost to follow‐up.
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.