Table 1.
Clinical characteristics of the 4886 adult patients from 1994 through 2003 who underwent acoustic neuroma excision
| Characteristic | Value |
|---|---|
| Patient age (y) | |
| Mean | 50.8 |
| Standard deviation | 13.2 |
| Median | 51.0 |
| Range | 18–92 |
| Female (%) | 53.7 |
| Race (%) | |
| Caucasian | 85.4 |
| Hispanic | 4.8 |
| African American | 3.7 |
| Asian/Pacific Islander | 3.2 |
| Others | 2.9 |
| Primary payer (%) | |
| Medicare | 15.9 |
| Medicaid | 4.2 |
| Private insurance/HMO | 73.1 |
| Self-pay | 3.1 |
| No charge/other | 3.7 |
| Caseload of hospital (%) | |
| Large bed size | 74.7 |
| Small or medium bed size | 25.3 |
| Region of hospital (%) | |
| Northeast | 16.7 |
| Midwest | 25.2 |
| South | 29.9 |
| West | 28.2 |
| Admission type (%) | |
| Routine, birth, and others | 94.8 |
| Emergency/other/facility/court/law | 5.2 |
| Surgeon volume (%) | |
| Low | 31.3 |
| High | 68.7 |
| Median income (%) | |
| 1 | 10.5 |
| 2 | 18.6 |
| 3 | 23.2 |
| 4 | 47.7 |
Note: Surgeon volume is defined as low if the operating surgeon performed only 1 or 2 acoustic neuroma excisions per year, and high if the surgeon performed ≥3 surgeries per year.
The median income has difference ranges across years.