Gilbert 1993.

Methods	RCT.
Participants	60 residents of two aged care facilities in Australia. N = 27 patients in intervention group; N = 33 patients in control group.
Interventions	Intervention group: Relaxation training and sleep hygiene. Relaxation training consisted of eight 40 minute sessions over three weeks. A passive relaxation technique was used. Participants were given a recording of relaxation training to practice between sessions. Participants were given information about sleep, anxiety and medication use. They were encouraged to use the relaxation procedures as a means of controlling anxiety and helping with sleep; they were also encouraged to reduce their use of BZDs. Medical and support staff were alerted to be vigilant to withdrawal effects and instructed to offer support. Control group: TAU.
Outcomes	Prescribed dose of BZDs. Sleep satisfaction, cognitive functioning, health rating and mood rating. Measures were taken at baseline, 1 month and 3 months.
Notes	Author supplied disaggregated data for self‐reported measures. Funding source: South Australian Health Commission (Section 16 grant). Declaration of interest: Not reported.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	"One setting was designated by a coin toss, as the intervention setting and the other as a comparison setting".
Allocation concealment (selection bias)	Unclear risk	Method of allocation concealment not reported.
Blinding (performance bias and detection bias) All outcomes	Low risk	No blinding reported but the primary outcome was the number of BZD tablets given to patients by staff.
Blinding of participants and personnel (performance bias) All outcomes	High risk	No blinding or incomplete blinding, and the outcome is likely to be influenced by lack of blinding.
Blinding of outcome assessment (detection bias) All outcomes	Low risk	No blinding reported but the primary outcome was the number of BZD tablets given to patients by staff.
Blinding of outcome assessor (detection bias) subjective outcomes	Unclear risk	These outcomes are beyond the scope of this review.
Incomplete outcome data (attrition bias) All outcomes	Low risk	No missing data.
Selective reporting (reporting bias)	Low risk	The study protocol is not available but the published reports include all expected outcomes, including those that were pre‐specified in the method section.