Marques 2013.

Study characteristics
Methods	Parallel RCT, individuals randomised
Data	UK, secondary care setting. All pilot host trial participants were included. Total n = 85; range age 26 to 92 years; 64% females; 31% were single; 8% were Non‐White; 33% had higher education; 19% were working,
Comparisons	Intervention group received a resource use log at baseline were participants could prospectively record their use of health services and expenses by using tick boxes and open questions. Control group did not receive a resource use log.
Outcomes	Diary return rate
Notes	Retention period: 3 months
Risk of bias
Item	Authors' judgement	Support for judgement
Allocation concealment?	Unclear	Not reported in the paper.
Adequate sequence generation?	Unclear	Not reported in the paper.
Blinding of participants and personnel?	Yes	Not reported in the paper but unblinding not likely to impact objective outcome
Blinding of outcome assessment?	Yes	Not reported in the paper.However, objective outcome, staff have no plausible additional opportunity to influence postal response rate once questionnaires sent.
Incomplete outcome data addressed? All outcomes	Yes	No concerns raised.
Free of selective outcome reporting?	Yes	No concerns raised.
Other sources of bias	Yes	No further concerns raised.
Overall Risk of Bias	Unclear	Unclear