Bulfone 2009.

Study characteristics
Methods	CCT 2‐arm parallel‐group design
Participants	Women with breast cancer waiting for adjuvant chemotherapy Type of cancer: breast (n = 60, 100%) Total N randomized: 60 N randomized to music group: 30 N randomized to control group: 30 N analyzed in music group: 30 N analyzed in control group: 30 Mean age: 50.95 years Sex: 60 (100%) females Ethnicity: 60 (100%) white (Italian) Setting: inpatient Country: Italy
Interventions	2 study groups: Music group: listening to pre‐taped music themes with WalkmanⓇ and earphones while waiting for chemotherapy Control group: standard care Music selections provided: participants were asked to select from new age music, nature music, film soundtracks, Celtic melodies, or classical music. Number of sessions: 1 Length of sessions: 15 min Categorized as music medicine
Outcomes	Anxiety (STAI‐S): post‐test scores
Notes	The principal investigator provided us with standard deviations as these were not given in the study report.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	High risk	Alternate assignment using order of admission (personal communication with principal investigator)
Allocation concealment (selection bias)	High risk	Alternate assignment prohibited allocation concealment.
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	It was unclear whether personnel were blinded; participants were not blinded.
Blinding of outcome assessment (detection bias) Objective outcomes	Low risk	The study did not address objective outcomes.
Blinding of outcome assessment (detection bias) Subjective outcomes	High risk	Self‐report measures were used for subjective outcomes.
Incomplete outcome data (attrition bias) All outcomes	Low risk	No attrition
Selective reporting (reporting bias)	Low risk	No evidence of selective reporting
Other bias	Low risk	No conflict of interest reported