Table 2.

Overview of patient-reported outcome measures.

Questionnaire	Type of instrument	Description	Assessment
Medical Outcome Study 36 Short Form Healthy Survey (MOS SF-36) (Ferreira, 2000; McHorney et al., 1993)	Generic	36 questions to measure eight health concepts: physical function, physical and emotional performance, physical pain, general health, vitality, social function, and mental health.	•Range 0–100 points for each domain. •Higher scores indicate better health state.
Hearing Handicap Inventory (HHI) (Newman et al., 1990; Oliveira and Carmo, 2011)	Hearing-specific	2 subscales: 13-item subscale that explores emotional (E) consequences of hearing loss; 12-item subscale that addresses social (S) and situational effects of hearing loss.	•Each question has 3 levels (yes, sometimes, no). •Higher scores indicate greater degree of disability. •No handicap: total (E + S) <16 points
Satisfaction with Amplification in Daily Life Scale (SADLS) (Cox and Alexander, 1999; Roque Dos Reis et al., 2017)	Hearing-specific	15 questions to assess the degree of satisfaction, hearing benefits and psychosocial disadvantages obtained with the use of hearing aids	•Each question range 1–7 points. •SADLS was assessed in patients who previously used conventional hearing aids. •Higher scores indicate a greater satisfaction.
Tinnitus Handicap Inventory (THI) (Newman et al., 1996; Oliveira and Meneses, 2007)	Hearing-specific	25 questions, with the items grouped in 3 subscales: functional (THI-F), emotional (THI-E), and catastrophic (THI-C) subscales, regarding tinnitus.	•100 points may be scored on the THI: THI-F range 0–48 points; THI-E range 0–32 points; THI-C range 0–20 points. •The higher the score, the greater the impairment in daily life. •Grading system (McCombe et al., 2001): 0–16 slight handicap; 18–36 mild handicap; 38–56 moderate handicap; 58–76 severe handicap; 78–100 catastrophic handicap.