Table 1: Age is given in years (y). Gender is described as f (female) or m (male). Puretone average (4-PTA) is calculated as average decibel (dB) hearing level (HL) at the frequencies 500 Hertz (Hz), 1000 Hz, 2000 Hz and 4000 Hz. Word recognition scores (WRS) are calculated using Freiburg monosyllables at (@) 80 dB HL. Hearing of the contralateral side resulted in the diagnoses of single sided deaf (SSD), asymmetric hearing loss (AHL) or bilateral complete hearing loss larger than 100 dB HL (≥ 100 dB). Contralateral 4-PTA = 4-PTAC