Fig. 4
From: Predictive factors of tinnitus after vestibular schwannoma surgery: a case-control study
A Frequency distribution of preoperative tinnitus (n = 49). B Tinnitus frequency and prognosis of tinnitus (n = 49). C Tinnitus loudness and prognosis of tinnitus (n = 49). Frequency and loudness were not related to the prognosis of tinnitus. D: Preoperative hearing function and postoperative new-onset tinnitus (n = 44). Patients with preoperative serviceable hearing were more likely to experience new-onset tinnitus after surgery. *p < 0.05. R, resolved; I, improved; U, unchanged; W, worsened; N, no tinnitus; A, appeared