Table 1.
Population demographics
| N | % | |
|---|---|---|
| Payer information | ||
| Medicare | 9249 | 33.43 |
| Medicaid | 2763 | 9.99 |
| Private insurance | 13,733 | 49.64 |
| Self-pay | 836 | 3.02 |
| No charge | 116 | 0.42 |
| Other | 967 | 3.50 |
| Income quartile based on ZIP code | ||
| Income quartile 1 | 5064 | 18.27 |
| Income quartile 2 | 6910 | 24.93 |
| Income quartile 3 | 7295 | 26.32 |
| Income quartile 4 | 7946 | 28.67 |
| Missing income quartile | 502 | 1.81 |
| Age category | ||
| <50 years old | 8700 | 31.39 |
| 50–64 years old | 10,086 | 36.39 |
| ≥ 65 years old | 8930 | 32.22 |
| Comorbidities | ||
| 0 comorbidities | 6924 | 24.98 |
| 1 comorbidity | 6922 | 24.97 |
| 2 comorbidities | 13,871 | 50.04 |
| Hospital bed size | ||
| Small | 1693 | 6.11 |
| Medium | 4565 | 16.47 |
| Large | 21,459 | 77.42 |
| Hospital teaching status | ||
| Metro non-teaching | 3327 | 12 |
| Metro teaching | 24,046 | 86.75 |
| Non-metro | 344 | 1.24 |
| Tumor resection volume | ||
| < 25th volume percentile | 504 | 1.82 |
| 25–50th volume percentile | 2255 | 8.14 |
| 50–75th volume percentile | 4089 | 14.75 |
| > 75th volume percentile | 20,869 | 75.29 |
| Emergency room status | ||
| No ED origin | 9101 | 32.84 |
| ED origin | 18,616 | 67.16 |
| Length of stay category | ||
| 0–2 days | 5052 | 18.23 |
| 3–4 days | 7279 | 26.26 |
| >4 days | 15,386 | 55.51 |
| Postoperative infection | ||
| No postop infection | 27,523 | 99.30 |
| Postop infection | 194 | 0.70 |
| Tumor location | ||
| Cerebrum | 519 | 1.87 |
| Frontal | 8943 | 32.27 |
| Temporal | 7005 | 25.27 |
| Parietal | 4065 | 14.67 |
| Occipital | 1264 | 4.56 |
| Ventricles | 429 | 1.55 |
| Cerebellum | 837 | 3.02 |
| Brain stem | 151 | 0.55 |
| Other brain | 1961 | 7.08 |
| Brain NOS | 2543 | 9.17 |
| APRDRG severity score | ||
| Minor loss of function | 5830 | 21.04 |
| Moderate loss of function | 11,965 | 43.17 |
| Major loss of function | 7557 | 27.26 |
| Extreme loss of function | 2363 | 8.53 |
| Day of admission | ||
| Weekday admission | 24,533 | 88.51 |
| Weekend admission | 3184 | 11.49 |
| Discharge disposition | ||
| Routine | 17,805 | 64 |
| Transfer to short-term hospital | 362 | 1 |
| Transfer other: SNF, ICF | 4594 | 17 |
| Home health care | 4904 | 18 |
| AMA | 38 | 0 |
| Discharge alive, destination unknown | DS | 0 |
| Admission type | ||
| Non-elective admission | 12,970 | 46.92 |
| Elective admission | 14,673 | 53.08 |
Values depicted represent the population demographics for all index hospital admissions between 2013 and 2014 for malignant brain tumor resection
DS data suppressed in accordance to the HCUP data user agreement regarding cell values < 10