Table 2.

Residual hearing outcomes obtained in the current study compared to the results obtained in the previous study by Heutink et al. (CS), as well as specifically for participants in whom the electrode array located in the scala tympani (ST) and those with a translocated electrode array [4]

	eRW (current study)		CS (Heutink et al.)			CS–ST (Heutink et al.)			CS–Translocation (Heutink et al.)
	Mean (SD)	N	Mean (SD)	N	p value	Mean (SD)	N	p value	Mean (SD)	N	p value
Preoperative LFPTA1 in dB	81.5 (11.9)	23	92.2 (13.3)	19	0.009	94.9 (10.7)	12	0.003	87.1 (19)	7	0.296
Postoperative threshold shift in LFPTA in dB	16.2 (10.8)	22	9.2 (9.2)	17	0.039	4.4 (5.3)	11	0.002	17.9 (9)	6	0.723
RHP% as per Skarzynski2	43.9 (34.8)	22	56.9 (46.3)	17	0.269	77.2 (45)	11	0.022	19.8 (16)	6	0.042

^aOne `participant (#10) was excluded from hearing outcome analysis due to a tip fold-over

¹Low frequency pure tone average: average threshold for 250, 500 and 1000 Hz

²Residual hearing preservation,$\text{RHP}\%=\left[1-\left(\frac{{\text{LFPTA}}_{\text{post}}-{\text{LFPTA}}_{\text{pre}}}{{\text{LFPTA}}_{\text{max}}-{\text{LFPTA}}_{\text{pre}}}\right)\times 100\%\right]$