Table 1. Inclusion and Exclusion Criteria.

Inclusion Criteria	Exclusion Criteria
Aged 18–65 years old	Aged <18 or >65 years old
Male and female
Military personnel and civilians	Ineligible patients for AFHSR service
Presented to AFHSR with a complaint of hearing loss	Patients with implantable hearing aids
Diagnosed by an audiologist using pure tone audiometry with conductive, sensorineural, or mixed hearing loss	Patients who were given hearing aids with a tinnitus masker to manage the tinnitus associated with hearing loss
Conventional hearing aids prescribed by an otolaryngologist to manage hearing loss 2017–2019	Patients without a pure tone audiometry result in their electronic file prior to their hearing aid fitting