Participants
Criteria for inclusion were individuals seen at the institution, aged ≥ 60 years, with sensorineural, symmetric, and moderate hearing loss (air-conduction thresholds of 250-4000 Hz not exceeding 60 dB bilaterally) clinical indication of hearing aid use and naive to sound amplification products. Individuals who died or failed to attend the follow-up visits were excluded. Data collection was carried out between 2015 and 2016.
We did not change the original methods we designed after this trial was started.
The flow diagram of enrollment, gain prescription, and algorithms activated in each group are depicted in Figure 1.