Table 4.

Multiple linear regression models to predict the Tinnitus Functional Index (TFI) score in different groups.

	COVID infection group (n = 125)		Long COVID group (n = 131)		COVID vaccination group (n = 523)		Pre-existing tinnitus group (n = 674)
Variables	β	p	β	p	β	p	β	p
Age	0.072	0.381	0.079	0.331	0.128	<0.001	0.076	0.034
Gender (Male)	−0.225	0.006	−0.042	0.595	−0.002	0.969	−0.067	0.048
Hearing loss (Yes)	0.193	0.019	0.142	0.067	0.115	0.003	0.169	<0.001
Hyperacusis (Yes)	−0.022	0.79	0.19	0.019	0.099	0.012	0.15	<0.001
Depression (Yes)	0.133	0.241	0.438	<0.001	0.273	<0.001	0.276	<0.001
Anxiety (Yes)	0.352	0.002	0.074	0.49	0.255	<0.001	0.214	<0.001
R 2	0.271		0.279		0.261		0.256

β, Standardized beta.

Bold numbers indicate statistical significance.