Summary of main results
In this study, we found that most initial tinnitus along with the onset
of SSNHL of the cases were classified as level 3 and 4. Initial tinnitus
level was remarkably associated with tinnitus efficacy at discharge and
an independent risk factor for the long-term prognosis of residual
tinnitus after SSNHL. The median recovery time was 23.00 ± 3.80 months.