Table 3.
Health-care utilization and demographic characteristics, Nationwide Readmissions Database (NRD).
| Rare disease % | Common condition % | P value | |
|---|---|---|---|
| n | 5,155,566 | 11,053,961 | |
| Age (years) | 57.8 | 44.0 | <0.0001 |
| Sex | <0.0001 | ||
| Female | 51.4 | 59.2 | |
| Male | 48.6 | 40.8 | |
| Payer | <0.0001 | ||
| Private | 23.7 | 33.9 | |
| Medicare | 54.2 | 25.2 | |
| Medicaid | 16.5 | 33.1 | |
| Self-pay | 2.4 | 3.9 | |
| No charge | 0.4 | 0.5 | |
| Location | <0.0001 | ||
| Large metro (central) | 26.6 | 26.8 | |
| Large metro (fringe) | 27.3 | 26.1 | |
| Medium metro | 20.1 | 20.2 | |
| Small metro | 9.8 | 10.4 | |
| Micropolitan | 9.2 | 9.4 | |
| Nonmetro, nonmicropolitan | 7.1 | 7.2 | |
| Elective | <0.0001 | ||
| Elective admission | 17.0 | 21.7 | |
| Nonelective admission | 83.0 | 78.3 | |
| Discharge disposition | <0.0001 | ||
| Routine | 59.0 | 77.2 | |
| Transfer to short-term hospital | 1.2 | 0.6 | |
| Transfer to other facility | 17.8 | 9.7 | |
| Home health care | 17.0 | 10.2 | |
| Left against medical advice | 1.0 | 1.3 | |
| Died | 4.0 | 1.0 | |
| Income quartile by ZIP code ($) | <0.0001 | ||
| 1–42,999 | 29.1 | 30.4 | |
| 43,000–53,999 | 25.6 | 25.4 | |
| 54,000–70,999 | 25.6 | 25.2 | |
| 71,000+ | 19.7 | 18.9 | |
| Diagnoses per discharge (number) | <0.0001 | ||
| 0 | 0.0 | 0.1 | |
| 1–5 | 9.2 | 38.2 | |
| 6–10 | 22.1 | 29.8 | |
| 11–15 | 27.3 | 17.4 | |
| Procedures per discharge (number) | <0.0001 | ||
| 0 | 29.1 | 30.4 | |
| 1–5 | 25.6 | 25.4 | |
| 6–10 | 25.6 | 25.2 | |
| 11–15 | 19.7 | 18.9 | |
| Same day event | <0.0001 | ||
| No transfer | 95.9 | 98.0 | |
| Two or more different hospitals | 3.8 | 1.9 | |
| Hospital state residency | <0.0001 | ||
| Resident | 94.3 | 95.7 | |
| Nonresident | 5.7 | 4.3 | |
| Rehabilitation transfer | <0.0001 | ||
| No transfer | 99.7 | 99.8 | |
| To rehabilitation, evaluation or other | 0.3 | 0.2 | |
| Missing values not displayed |
Demographic characteristics, NRD, weighted estimate.