Table 1. Study characteristics.
| Ref. | First Author | PY | Lang | Pts. in Study | Pts. Used | Reason for pt. removal | Outcomes Measures |
|---|---|---|---|---|---|---|---|
| 37 | Aschendorff | 2017 | E | 8 | 5 | CI not placed | SDS |
| 38 | Bohr | 2017 | G | 6 | 5 | NF2 | PAT, SDS |
| 39 | DeHart | 2017 | E | 1 | 1 | PAT, AzBio, CNC | |
| 40 | Plontke | 2017 | E | 12 | 5 | CI not placed | SDS |
| 41 | Carlson | 2016 | E | 10 | 3 | NF2 | PAT, AzBio, CNC |
| 42 | Dagna | 2016 | E | 1 | 1 | PTA, HINT, THI | |
| 21 | Hassepass | 2016 | E | 11 | 3 | CI not placed or no CI outcomes | HINT, localization test, tinnitus VAS, subjective survey |
| 43 | Huo | 2016 | E | 3 | 2 | C/l CI placement | PAT, SDS mono/di/sentence, THI, telephone use |
| 44 | Kim | 2016 | E | 2 | 2 | PAT, HINT | |
| 45 | Schipper | 2017 | G | 10 | 10 | SDS | |
| 46 | Schutt | 2014 | E | 1 | 1 | PAT, SDS | |
| 47 | Di Lella | 2013 | E | 10 | 3 | C/l CI placement | Disyllabic SDS, sentence recognition |
| 48 | Helbig | 2009 | E | 1 | 1 | SDS | |
| 49 | Zanetti | 2008 | E | 1 | 1 | SDS | |
| 50 | Arriaga | 1995 | E | 1 | 1 | PAT |
Abbreviations: AzBio, Arizona biomedical institute sentence test; CI, cochlear implant; CNC, Maryland consonant-vowel nucleus-consonant test; E, English; G, German; HINT, hearing in noise test; Lang., language; NF2, neurofibromatosis type 2; PAT, postimplant audiometry threshold; Pt, patients; Pts, patients; C/I, contralateral; Ref, reference number; SDS, speech discrimination score; THI, tinnitus handicap index; VAS, visual analog scale.