Speech perception is predicted by pre-implant speech perception, age at onset of deafness and aetiology (meningitis and otosclerosis) for postlinguals and solely pre-implant speech perception for prelinguals. Age at implantation is of lesser importance in predicting speech perception outcome post-implant. Multiple imputation is a useful statistical technique when analysing incomplete data sets.

1b Laryngoscope, 127:1161-1168, 2017.

trialregister.nl Identifier: NTR5401.

trialregister.nl Identifier: NTR1722.