. Author manuscript; available in PMC: 2020 Apr 27.

Published in final edited form as: Otol Neurotol. 2016 Mar;37(3):235–240. doi: 10.1097/MAO.0000000000000963

TABLE 2.

Preoperative, activation, and 6-month and 1-year postoperative thresholds, pure-tone averages, and median threshold differences

Preoperative
Mean threshold at 250 Hz	65.4 dB HL
Median threshold at 250 Hz	70 dB HL
Mean PTA at 125, 250, and 500 Hz	66.3 dB HL
Median PTA at 125, 250, and 500 Hz	70 dB HL
Mean PTA at 250, 500, and 1000 Hz	77.4 dB HL
Median PTA at 250, 500, and 1000 Hz	79.2 dB HL
Mean PTA at 250, 500, 1000, and 2000 Hz	84.6 dB HL
Median PTA at 250, 500, 1000, and 2000 Hz	82.5 dB HL
At activation
Mean PTA at 125, 250, and 500 Hz	86.4 dB HL
Median PTA at 125, 250, and 500 Hz	86.7 dB HL
Mean PTA at 250, 500, and 1000 Hz	99.5 dB HL
Median PTA at 250, 500, and 1000 Hz	100 dB hL
Mean PTA at 250, 500, 1000, and 2000 Hz	102.7 dB HL
Median PTA at 250, 500, 1000, and 2000 Hz	103.8 dB HL
Median threshold difference at 125 Hz	12.5 dB HL
Median threshold difference at 250 Hz	20 dB HL
Median threshold difference at 500 Hz	22.5 dB HL
Median threshold difference at 1000 Hz	20 dB HL
At 6 months
Median threshold difference at 125 Hz	10 dB HL
Median threshold difference at 250 Hz	15 dB HL
Median threshold difference at 500 Hz	20 dB HL
Median threshold difference at 1000 Hz	15 dB HL
At 12 months
Median threshold difference at 125 Hz	10 dB HL
Median threshold difference at 250 Hz	15 dB HL
Median threshold difference at 500 Hz	20 dB HL
Median threshold difference at 1000 Hz	10 dB HL

PTA indicates pure-tone average.