Bolwerk 1990.

Study characteristics
Methods	RCT 2‐arm parallel group design
Participants	Adults with medical diagnosis of myocardial infarction (MI) confirmed by enzyme and ECG changes Total N randomized: 40 N randomized to music group: 20 N randomized to control group: 20 N analyzed in music group: 17 N analyzed in control group:18 Sex: 8 (32%) women, 17 (68%) men Ethnicity: not reported Mean age: 58.65 years Setting: Inpatient Country: USA
Interventions	Two study groups: 1. Music group: listening to relaxing researcher‐selected music 2. Control group standard care Music provided: compilation tape of (a) Largo by Bach, (b) Largo by Beethoven, (c) Prelude to the afternoon of a Faun by Debussy Number of sessions: 3 sessions on 3 consecutive days Length of session: 22 minutes Categorized as music medicine
Outcomes	Anxiety (STAI): posttest scores after the final session
Notes	Some participants stated that they didn't care for the music; 2 would have liked different music
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Quote: "Control was enhanced in the study by random assignment of subjects to two groups‐experimental and control‐using a table of random numbers" (p.67)
Allocation concealment (selection bias)	Unclear risk	Not reported
Blinding of participants and personnel (performance bias) All outcomes	High risk	Blinding of the participants was not possible. Personnel were not blinded.
Blinding of outcome assessment (detection bias) Subjective outcomes	High risk	Self report measures were used for subjective outcomes
Blinding of outcome assessment (detection bias) Objective outcomes	Low risk	No objective outcomes were used.
Incomplete outcome data (attrition bias) All outcomes	Low risk	Attrition rate: n = 5 (12.5%)
Selective reporting (reporting bias)	Unclear risk	Not sufficient information available to make judgment
Other bias	Low risk	No report of funding