Variable | ADI National percentile < 85 (n = 17,094) | ADI National percentile ≥ 85 (n = 2396) |
---|---|---|
Patients | ||
 Age | ||
  Mean Age at Discharge (SD), y | 75.64 (12.83) | 71.79 (13.90) |
  18–65 y | 16% | 26% |
  65+ y | 84% | 74% |
 Sex | ||
  Male | 39% | 39% |
  Female | 61% | 61% |
 Race | ||
  White | 83% | 58% |
  Black | 10% | 28% |
  Other/Unknown | 8% | 14% |
 Medicaid Enrollment | ||
  Not Medicaid Enrolled | 74% | 51% |
  Medicaid Enrolled | 26% | 49% |
 Disability | ||
  Not disabled | 72% | 57% |
  Disabled | 28% | 43% |
 Patient RUCA | ||
  Urban core | 73% | 65% |
  Suburban | 9% | 6% |
  Large rural | 10% | 14% |
  Small rural | 8% | 15% |
 Elixhauser Comorbidities | ||
  Hypertension | 79% | 84% |
  Fluid and electrolyte disorders | 59% | 65% |
  Deficiency anemia | 52% | 58% |
  Diabetes (without chronic complications) | 37% | 46% |
  Renal failure | 36% | 42% |
  Chronic pulmonary disease | 34% | 42% |
  Congestive heart failure | 30% | 36% |
  Depression | 26% | 29% |
  Other neurological conditions | 25% | 28% |
  Hypothyroidism | 25% | 23% |
  Peripheral vascular disease | 22% | 26% |
  Weight loss | 20% | 25% |
  Obesity | 17% | 21% |
  Diabetes (with chronic complications) | 17% | 24% |
  Valvular disease | 15% | 14% |
  Metastatic cancer | 5% | 4% |
  Alcohol abuse | 4% | 6% |
  Drug abuse | 4% | 6% |
  Chronic blood loss anemia | 4% | 5% |
  Lymphoma | 3% | 3% |
 Acquired immune deficiency syndrome | 1% | 2% |
  Pulmonary circulation disease | 10% | 11% |
 Rheumatoid arthritis/collagen vascular disease | 8% | 9% |
  Paralysis | 8% | 10% |
  Liver disease | 7% | 9% |
  Solid tumor without metastasis | 14% | 11% |
  Psychoses | 11% | 14% |
  Coagulopathy | 14% | 15% |
Index Stay | ||
 Length of Stay | ||
  Mean Hospital length of stay (SD), days | 9.68 (9.60) | 10.38 (11.80) |
    ≤ 2 days | 8% | 7% |
   3–4 days | 21% | 18% |
   5–6 days | 18% | 18% |
   7+ days | 53% | 56% |
 SNF Discharge | ||
  Discharged to SNF | 37% | 33% |
  Not discharged to SNF | 63% | 67% |
Index Hospital | ||
 Medical School Affiliation | ||
  Hospital affiliated with medical school | 50% | 56% |
  Minor medical school affiliated | 27% | 30% |
  Major medical school affiliated | 23% | 26% |
 Hospital Type | ||
  Non-profit hospital | 75% | 68% |
  For profit hospital | 13% | 17% |
  Government hospital | 12% | 15% |
 Discharge | ||
  Hospital discharge volume in 2014 (SD) | 6463.18 (4791.26) | 6554.34 (4968.94) |
  Hospital discharge volume: lowest tertile | 8% | 10% |
  Hospital discharge volume: middle tertile | 23% | 21% |
  Hospital discharge volume: highest tertile | 69% | 69% |
Outcome | ||
 Rate of 30-day readmission | 21% | 26% |
 Rate of 30-day death | 13% | 13% |