Hall 2003.

Study characteristics
Methods	Quasi‐randomised controlled trial, parallel group (1:1)
Participants	Participants aged 35‐75 years, with type 2 diabetes mellitus and no history of CVD or renal disease attending a specialised diabetes mellitus clinic in the UK Inclusion criteria: not reported Exclusion criteria: not reported 323 participants recruited (n = 162 intervention, n = 161 comparison) Mean age of participants not reported; 48% women; 100% diabetes mellitus
Interventions	The New Zealand cardiovascular risk score was calculated for all participants Intervention group: CVD risk score was documented on the front of the participant's chart before visit Comparison group: no risk score documentation
Outcomes	Primary outcome: not specified Outcomes reported: changes in diabetes mellitus treatment, changes in antihypertensive treatment, referral to dietician, risk score mentioned in letter to GP Follow‐up: none
Study funding sources	Funding source not reported by authors
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	High risk	"We allocated patients alternately to experimental and control groups."
Allocation concealment (selection bias)	High risk	See above
Blinding of participants and personnel (performance bias) All outcomes	High risk	Not blinded
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Method for outcome assessment not reported
Incomplete outcome data (attrition bias) All outcomes	Low risk	All participants included in study were analysed
Selective reporting (reporting bias)	Unclear risk	No protocol available for review
Other bias	High risk	Small study bias