Table 1 Baseline information of the patients
From: Microsurgery for vestibular schwannoma: analysis of short-term clinical outcome
Number of patients | 100 |
|---|---|
Mean age | 48.8 (22–72) |
Age distribution (years) | Number |
21–29 | 10 (10%) |
30–39 | 15 (15%) |
40–49 | 28 (28%) |
50–59 | 31 (31%) |
60–69 | 15 (15%) |
70–79 | 1 (1%) |
Gender ratio (female: male) | 66:34 |
Tumor side left/right | 46:54 |
Koos grading | Number |
Grade 1 | 0 |
Grade 2 | 18 (18%) |
Grade 3 | 34 (34%) |
Grade 4 | 48 (48%) |
Hannover grading | Number |
T1 | 1 (1%) |
T2 | 5 (5%) |
T3a | 6 (6%) |
T3b | 8 (8%) |
T4a | 30 (30%) |
T4b | 50 (50%) |
Tumor characteristics | Number |
Cystic | 30 (30%) |
Solid | 70 (70%) |