Patient characteristics
| Baseline | (Median (range)) | One year | Six years | |
|---|---|---|---|---|
| *One year data missing for one patient. | ||||
| No of patients | 19 | – | 18* | 19 |
| Unilateral/bilateral implant | 15/4 | – | 14/4 | 12/7 |
| Sex (F/M) | 5/14 | – | – | – |
| Duration of disease (years) (mean (SD)) | 37.7 (12.3) | (36, 17 to 58) | – | – |
| Age at implant (years) (mean (SD)) | 61.8 (11.0) | (65, 40 to 78) | – | – |
| Duration of follow up (years) (mean (SD)) | 6.53 (0.6) | (6.54, 5.54 to 7.72) | – | – |