Table 7.

Differences Between Intraoperative Extra- and Intracochlearly Recorded OR Thresholds.

	250 Hz	500 Hz	1000 Hz
	Mean ± standard deviation in dB, correlation
Preinsertion EC vs. postinsertion IC OR ${\Delta }_{\text{EC}-\text{IC}}$	21.0 ± 20.9 $r=$ .52	8.9 ± 22.8 $r=$ .26	5.5 ± 19.6 $r=$ .41
Postinsertion EC vs. postinsertion IC OR ${\Delta }_{\text{EC}-\text{IC}}$	26.5 ± 23.9 $r=$ .22	11.4 ± 18.1 $r=$ .53	11.5 ± 19.6 $r=$ .36

OR = ongoing response; EC = extracochlear; IC = intracochlear.