Fig. 2
From: Predictive factors of tinnitus after vestibular schwannoma surgery: a case-control study
A Age and prognosis of tinnitus (n = 173). Patients > 50 years old were more likely to resolve or improve their postoperative tinnitus than patients ≤ 50 years old. B Preoperative hearing function and prognosis of tinnitus (n = 173). Patients with preoperative serviceable hearing were more likely to have unchanged or worsened tinnitus after surgery compared to those with non-serviceable hearing. *p < 0.05. R, resolved; I, improved; U, unchanged; W, worsened