Schedule of visits and assessments to measure study outcome per group
| Baseline Rx | CI group | Control group | |||||
| CI | 2 weeks post CI | 3 months post CI | 6 months post CI | Rx +3 months | Rx +6 months | ||
| CI (surgery) | X | ||||||
| CT scan | X | X | |||||
| Electrocochleography | X | X | X | ||||
| Hearing level | X | X | X | X | |||
| Speech perception | X | X | X | X | X | ||
| Tinnitus pitch match | X | X | X | X | X | ||
| Tinnitus loudness match | X | X | X | X | X | ||
| TFI* | X | X | X | X | X | ||
| VAS tinnitus * | X | X | X | X | X | X | |
| SSQ* | X | X | X | X | X | ||
| EQ5D* | X | X | X | X | X | ||
| HADS* | X | X | X | X | X | ||
| BDI* | X | X | |||||
| GBI* | X | ||||||
| CGI* | X | X | |||||
| ESIT-SQ* | X | ||||||
*Questionnaires (Q) will be filled in at home.
BDI, Beck Depression Inventory; CGI, Clinical Global Impression; CI, cochlear implantation; e.o.s, end of study; EQ5D, Euro-Quality-of-life 5D; ESIT-SQ, ESIT Screening Questionnaire; GBI, Glasgow Benefit Inventory; HADS, Hospital Anxiety and Depression Scale; Rx, randomisation; SSQ, Speech, Spatial and Qualities Hearing Scale; TFI, Tinnitus Functional Index; VAS, Visual Analogue Scale.