. 2023 Nov 30;13:19870. doi: 10.1038/s41598-023-46741-5

Table 2.

Mixed-effects regression models of masker effect as a function of tinnitus status and EHFs on ABR variables.

Predictors	On AP* amp			On log (N₁/N₂)			On log (N₁/N₃)
Predictors	Est	CI	p	Est	CI	p	Est	CI	p
(Intercept)	− 0.039	− 0.050 to − 0.028	< 0.001	− 0.230	− 0.339 to − 0.120	< 0.001	− 0.211	− 0.316 to − 0.106	< 0.001
Chronic	0.020	− 0.006 to 0.047	0.135	0.008	− 0.253 to 0.268	0.955	− 0.058	− 0.308 to 0.192	0.650
EHFs	0.000	− 0.001 to 0.001	0.521	0.008	− 0.000 to 0.016	0.054	0.010	0.002 to 0.017	0.011
Random effects
σ²	0.00			0.30			0.21
τ_∞	0.00_ID			0.17_ID			0.19_ID
ICC	0.42			0.36			0.47
N	158_ID			158_ID			158_ID
Observations	298			298			298
Marginal R²	0.014			0.015			0.027
Conditional R²	0.424			0.371			0.487

Predictors	On log(N₁/N₅)			On N₁* lat			On N₂* lat
Predictors	Est	CI	p	Est	CI	p	Est	CI	p
(Intercept)	− 0.138	− 0.244 to − 0.031	0.012	0.039	0.014 to 0.063	0.002	0.030	− 0.003 to 0.064	0.079
Chronic	− 0.181	− 0.436 to 0.073	0.162	− 0.018	− 0.077 to 0.040	0.535	− 0.056	− 0.137 to 0.024	0.170
EHFs	0.007	− 0.000 to 0.015	0.056	0.001	− 0.001 to 0.003	0.286	0.003	0.000 to 0.005	0.022
Random effects
σ²	0.19			0.01			0.02
τ_∞	0.21_ID			0.01_ID			0.02_ID
ICC	0.53			0.38			0.50
N	158_ID			158_ID			158_ID
Observations	298			298			298
Marginal R²	0.022			0.006			0.027
Conditional R²	0.538			0.379			0.510

Predictors	On N₃* lat			On N₅* lat			On N₁–N₅ lat
Predictors	Est	CI	p	Est	CI	p	Est	CI	p
(Intercept)	0.082	0.047 to 0.117	< 0.001	0.093	0.053 to 0.134	< 0.001	0.052	0.008 to 0.095	0.019
Chronic	− 0.101	− 0.183 to − 0.018	0.017	− 0.133	− 0.229 to − 0.036	0.007	− 0.115	− 0.219 to − 0.011	0.030
EHFs	0.003	0.000 to 0.005	0.036	0.002	− 0.001 to 0.005	0.111	0.002	− 0.001 to 0.005	0.283
Random effects
σ²	0.03			0.03			0.03
τ_∞	0.02_ID			0.03_ID			0.04_ID
ICC	0.37			0.43			0.54
N	158_ID			158_ID			158_ID
Observations	298			298			298
Marginal R²	0.037			0.039			0.026
Conditional R²	0.392			0.457			0.551

Adj. adjusted, Chronic chronic tinnitus group, CI confidence interval, EHFs thresholds at extended high frequencies, Est. estimates.

Significant values are in bold.