Table 3 Study design, Outcome measures and results
From: Three year experience with the cochlear BAHA attract implant: a systematic review of the literature
Study | Study Design | Outcome measures | Results (Mean improvement) |
|---|---|---|---|
Baker 2015 [23] | Retrospective case series | Soundfield testing: PTA and SRT | PTA: 41 dB HL SRT: 56 dB HL |
Gawecki 2016 [19] | Prospective cohort study | QoL questionnaires: GBI, APHAB, BAHU Free field speech in noise audiometry | APHAB: 23.5 % improvement GBI: 29.6 % improvement BAHU: “Good” or “very good” by 85 % of patients Speech in noise: 32.9 % |
Deveze 2015 [6] | Case report | N/A | N/A |
Multicentre retrospective cohort study | Free field PTA and SRT QoL questionnaires: GBI | PTA: 27.3 dB HL SRT: 24 dB HL GBI: 40.5 | |
Marsella 2015 [25] | Prospective case series | Free field PTA and SRT | PTA: 25 dB HL SRT: 63 % |
Clamp 2015 [2] Briggs 2015 [22] | Multicentre prospective cohort study | Free field PTA and SRT Speech in noise audiometry QoL questionnaire: APHAB | PTA: 18.4 dB HL SRT: 50 dB HL at 50 dB SPL Speech in noise: 15 dB HL APHAB: significant improvement p < 0.05 |
Powell 2015 [26] | Cross-sectional cohort study | Free field PTA and SRT QoL questionnaires: Bone Anchored Hearing Devices questionnaire | PTA: 30.2 SRT: 72.5 Bone Anchored Hearing Devices Questionnaire: mean score 9.7/10 |
Carr 2015 [27] | Retrospective cohort study | Free field speech discrimination QoL questionnaires: GBI, COSI | Speech discrimination: 56 % at 50 dBA GBI:82 % and 91 % (for previously aided vs not-previously aided patients) COSI: 86 % of patients could hear in background noise 95 % of the time |