Lavie 2014.

Methods	Randomised No details of data collection period
Participants	N = 36, 12 simultaneous binaural fitting, 24 sequentially (12 left ear first, 12 right ear first) Age range: 64 to 88 years Gender: 20 men, 16 women Inclusion criteria: mild to moderate hearing loss, symmetric speech discrimination scores for each ear, first time hearing aid users, willing to try 2 aids Exclusion criteria: mini‐mental state exam <= 24
Interventions	Group 1 – fitted binaurally Group 2 – fitted with aid for right ear and then left ear a month later Group 3 – fitted with aid for left ear and then right ear a month later Otherwise all groups received same rehabilitation/counselling/instruction
Outcomes	Short‐term: 'compliance' assessed as high, fair or poor at 1 month and 2 months, average hours per day (data‐logged)
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Quote: "Participants were randomly divided in to three equal‐size groups" Comment: no further details of how this was done
Allocation concealment (selection bias)	High risk	Comment: unable to conceal allocation from participants or investigators during the first month, unclear whether allocation concealment from investigators was achieved in the second month
Blinding of participants and personnel (performance bias) All outcomes	High risk	Participants not blinded due to the nature of the intervention
Blinding of outcome assessment (detection bias) All outcomes	High risk	Investigators not blinded
Incomplete outcome data (attrition bias) All outcomes	Low risk	Some data excluded but reasons given
Selective reporting (reporting bias)	Unclear risk	No protocol available but published data include all expected outcomes
Other bias	Low risk	The study appears to be free of other sources of bias