Table 2.

The mean absolute difference between intraoperative electrocochleography (ECochG) thresholds and postoperative behavioral thresholds at 125, 250, and 500 Hz frequencies are shown in the overall cohort.

Frequency (Hz)	Δ Intraop ECochG and postop behavioral thresholds, overall mean in dB HL (range)	Δ Intraop ECochG and postop behavioral thresholds, ST Insertion mean in dB HL (range)	Δ Intraop ECochG and postop behavioral thresholds, SV insertion mean in dB HL (range)	p-value
125	29 (1–69)	16 (1–28)	46 (33–69)	0.001
250	24 (2–55)	13 (2–29)	41 (30–55)	0.001
500	19 (2–40)	12 (2–38)	22 (6–35)	0.310

Differences are also depicted according to scalar location of the electrode array; the P value represents the comparison between scala tympani (ST) insertions and scala vestibuli (SV) insertions. Means and ranges are reported. Bonferroni correction is applied for multiple comparisons, with p < 0.017 indicative of statistical significance.