. 2021 Jun 8;279(5):2309–2319. doi: 10.1007/s00405-021-06924-0

Table 2.

Analysis of non-implanted and implanted ears

	Non-implanted ears	Preoperative non-implanted and postoperative implanted ears	Implanted ears	Implanted ears
Group	1	2	3	3
Patients	20	20	10	10
Number of test series	2	2	2	2

Test series	CDL_OC (mm)	CDL_OC (mm)	CDL_OC (mm)	IED (mm)
MSCT postoperative (600 µm)
ICC	0.807^a	0.862^a	0.785^a	0.644^b
95%-CI	0.324^d–0.935	0.578^c–0.950	0.336^d–0.942	0.077^d–0.898
Cronbach’s alpha	0.934^a	0.946^a	0.869^b	0.776^c
t-Test	0.0011*	0.0077*	0.7499	0.4706
Mean	34.55	34.29	37.59	2.55
Range	31.20–36.95	30.50–37.15	34.35–42.40	2.20–2.81
SD	1.60	1.81	2.12	0.16
95%-CI	1.50	1.70	3.05	0.24
fpVCT postoperative (466 µm)
ICC	0.768^a	0.946^a	0.942^a	0.875^a
95%-CI	0.465^c–0.905	0.578^c–0.959	0.783^a–0.985	0.568^c–0.968
Cronbach’s alpha	0.890^b	0.946^a	0.967^a	0.926^a
t-Test	0.0297*	0.1211	0.9347	0.9646
Mean	34.63	36.43	37.01	2.51
Range	31.55–37.60	33.55–39.30	34.70–42.00	0.12
SD	1.47	1.67	2.06	2.23–2.67
95%-CI	1.38	1.57	2.95	0.19
fpVCT_SECO postoperative (99 µm)
ICC	0.926^a	0.904^a	0.961^a	0.936^a
95%-CI	0.823^a–0.970	0.772^a–0.961	0.854^a–0.990	0.765^a–0.984
Cronbach’s alpha	0.960^a	0.947^a	0.978^a	0.964^a
t-Test	0.6359	0.9782	0.6529	0.8220
Mean	35.84	36.18	36.55	2.50
Range	32.95–38.45	32.90–39.60	34.55–41.40	2.22–2.68
SD	1.39	1.75	2.07	0.14
95%-CI	1.30	1.64	2.98	0.21

Overall comparison of intraobserver variability and statistical data of CDL_OC measurements of each imaging modality and setting

^aExcellent—ICC: Cronbach’s alpha

^bGood—unacceptable 0.000–0.400: unacceptable 0.000–0.700

^cFair—fair 0.400–0.600: fair 0.700–0.800

^dUnacceptable—good 0.600–0.750: good 0.800–0.900

*Significant—excellent 0.750–1.000: excellent 0.900–1.000