Table 1.
Included studies from the primary search
| Study | Type of study | QoL Questionnaire used in study | First time/ experienced users? | Number of participants in study | Age | Unilateral or Bilateral HL | Range and character - HL | HA fitting | Results | CCAT score |
|---|---|---|---|---|---|---|---|---|---|---|
| Capoani Garcia Mondelli, M. F. and P. J. Soalheiro de Souza, 2012 [46] | Cross sectional/Longitudinal | Generic WHOQOL - bref | First time | 30 (57% male) | Range: 60–90 years, mean age 76.8 years | bilateral | Moderate hearing loss. No further definition. | Before HA fitting (ISAD) and after 3 months. | Using HA (ISAD) improved the overall QoL | 25 |
| Chew, H. S. and S. Yeak, 2010 [49] | Cross sectional | Generic: SF 36 | First time | 80 (41% male) | Range: 50 years and over. Median age 69 years | bilateral | >25 dB PTA in the better ear. | Not specified | SF-36 lacked specificity and sensitivity in assesing the impact on HL on QoL | 21 |
| Chia, E.-M., et al., 2007 [50] | Cross sectional | Generic: SF 36 | Not specified | 2431 | Mean age: 67 years | Unilateral and bilateral | Unilateral HI defined as HI in one ear and no HI in the other ear. Bilateral HI defined as HI in both ears. HI defined as >25 dB PTA | Not specified | Unilateral HL: No significant difference in QoLthan those whitout HL. Bilateral HL: Poorer QoL than those whitout HL. | 27 |
| Dalton, D. S., et al., 2003 [44] | 5- year follow-up Longitudinal | SF-36 (Generic) | Not specified | 2688, (42% male) | 53–97 years, mean age 69 years | Not specified | Mild: 26–440 dB PTA HL in eighterear. Moderate to severe: >40 dB PTA in eighter ear | Not specified | HL was associated with reduced QoL. | 36 |
| Espmark, A. K. K., et al., 2002 [47] | Cross sectional | HMS (26 questions, where 4 of 20 items where related to QoL) | First time | 154 (38% male) | Born 1920 or earlier | Not specified | Three groups: Normal to slight HL: <30 dB PTA. Mild HL: 30–39 dB PTA. Moderate to severe HL: ≥ 40 dB PTA | Not specified | HL was significantly associated with reduced QoL in all four dimensions in females and in two of four in males. | 27 |
| Hallberg, L. R., et al., 2008 [51] | Cross sectional | PGWB | Mixed | 79 (39% male) | 48–92 years, mean age 68.7 years | Bilateral | PTA low at Freq.0.5, 1 and 2 kHz was 39.6 dB. PTA high at Freq. 2,3,4 and 6 kHz was 55.5 dB | Not specified | HL was significantly associated with reduced QoL. Psychsocial consequenses of HI, such as lowered QoL, cannotbe predicted from audiometric data alone. | 33 |
| Helvik, A. S., et al., 2006 [52] | Cross sectional | PGWB | Mixed, mean duration of the HI was 15.1 years | 343 (55% male) | 21–94 years, mean age 69 years | Not specified | Mean threshold of hearing for the total sample was 43.0 dB | Not specified | Psychological well-being was associated with activity limitation and participation restriction, but not with the degree of HL and use of communication strategies | 28 |
| Lotfi, Y., et al., 2009 [48] | Cross sectional/Longitudinal | HHIE | First time users | 207 (71% male) | ˃60 years, meanage 73.01 years | Not specified | Moderate HL: 56–70 dB Profound HL: 71–90 dB | Before HA fitting and after 3 months | Significant improvement in QoL after HA fitting | 19 |
| Meyer, J. M. and S. Kashubeck-West, 2013 [55] | Cross sectional | HHIA and The meassureof psychological well-being (generic) | Not specified | 277 (25% male) | 18–65 years Mean age49 years | Not specified | Not specified | Not specified | Relationship between perceived severity and perceived disability acted as direct predictors to well-being and as a indirect predictors through their relationship with coping. No significant association between QoL and HL | 30 |
| Miyakita, T., et al., 2002 [54] | Cross sectional | Generic, LISZ, 13 questions about QoL | Not specified | 210 retired workers, gender not specified | 56–65 years, mean age 60.6 years | Not specified | Not specified | Not specified | Hearing disabillities was associated with deteriorationin QoL. No significant association between QoL and HL | 23 |
| Niemensivu, R., et al., 2015 [45] | Prospective study Including control group | Generic 15D | First time HA | 949 with HI (42% male), Control group 4685 persons | Mean age: 73.8 years | Not specified | Frequencies 0.5,1,2 and 4 kHz. Four categories of HL. Mild: 25–40 dB, moderate: 41–70 dB, Severe 71–95 dB and very severe: >95 dB. | Before HA fitting (in the better ear) and after six monthts | Significant improvementin QoLafter unilateral HA fitting | 29 |
| Stark, P. and L. Hickson, 2004 [53] | Cross sectional/Longitudinal | Generic SF- 36 | First time HA | 131(67% male) | 47–90 years, mean age 71.7 years | Not specified | Not devided in groups. PTA at0.5, 1 and 2 kHz in the better ear. | Before HA fitting and after 3 months | No significant improvements in HRQoL after HA fitting. | 30 |
| 25 dB or less: n = 18 | ||||||||||
| 26–35 dB:n = 44 | ||||||||||
| 36–46 dB:n = 23 | ||||||||||
| 46–55 dB: n = 8 | ||||||||||
| Vuorialho, A., et al., 2006 [56] | Cross sectional/Longitudinal | Generic EQ-5D in combination with HHIE-S | First time HA | 98 (50% male) | 61–87 years (median 77 years) | Not specified | Not specified | Before HA fitting and after 6 months | No significant QoL improvement after HA- fitting | 30 |
EQ-5D EuroQol Group- 5 Dimensions
SF- 36 Medical Outcome Study (MOS) Short Form- 36 Health Survey Scale
15D 15 Dimension (a standardized self-administered measure of Health related Quality of Life)
LISZ Life Satisfaction Index, version Z
HMS Hearing Measurement Scale
PGWB Psychological General Well Being index
WHOQOL – bref Abbreviated version of the WHO QoL- 100 Quality of Life assessment
HHIE/HHIA Hearing Handicap Inventory for the Elderly/Adults
HHI-S HHIE - Screening version