Table 2.
Multivariable Multilevel Analysis of the Impact of Patient and Hospital Characteristics on the Odds of Readmission Within 30 Days of Hospital Discharge
| Patient Characteristic | Odds Ratio (95 % CI) |
|---|---|
| Age, every 10y | 1.01 (1.00, 1.01) |
| Race | |
| White | 1.00 |
| Black | 0.98 (0.95, 1.00)* |
| Hispanic | 0.93 (0.91, 0.95)* |
| Other | 0.92 (0.87, 0.98)* |
| Sex, Male vs. Female | |
| Male | 1.10 (1.08, 1.11)* |
| Female | 1.00 |
| Medicaid eligible, Yes vs. No | 1.07 (1.06, 1.09)* |
| Emergency Admission, Yes vs. No | 0.99 (0.97, 1.00) |
| Weekend Admission, Yes vs. No | 0.99 (0.98, 1.01) |
| DRG weights | 1.38 (1.35, 1.41)* |
| Major Diagnostic Category | |
| Nervous System | 0.90 (0.88, 0.93)* |
| Eye | 0.73 (0.58, 0.93)* |
| Ear, Nose, Mouth And Throat | 0.66 (0.61, 0.72)* |
| Respiratory System | 0.91 (0.89, 0.93)* |
| Circulatory System | 1.00 |
| Digestive System | 0.99 (0.97, 1.02) |
| Hepatobiliary System And Pancreas | 1.33 (1.27, 1.39)* |
| Musculoskeletal System And Connective Tissue | 1.12 (1.08, 1.17)* |
| Skin, Subcutaneous Tissue And Breast | 0.78 (0.75, 0.81)* |
| Endocrine, Nutritional And Metabolic System | 1.06 (1.03, 1.10)* |
| Kidney And Urinary Tract | 0.99 (0.96, 1.02) |
| Male Reproductive System | 1.04 (0.91, 1.19) |
| Female Reproductive System | 1.77 (1.54, 2.03)* |
| Blood and Blood Forming Organs and Immunological Disorders | 1.19 (1.14, 1.24)* |
| Myeloproliferative Diseases and Poorly Differentiated Neoplasms | 3.06 (2.87, 3.26)* |
| Infectious and Parasitic Diseases and Disorders | 0.78 (0.75, 0.81)* |
| Mental Diseases and Disorders | 1.11 (1.06, 1.16)* |
| Alcohol/Drug Use or Induced Mental Disorders | 0.91 (0.80, 1.02) |
| Injuries, Poison And Toxic Effect of Drugs | 0.88 (0.81, 0.94)* |
| Burns | 0.84 (0.55, 1.29) |
| Factors Influencing Health Status | 1.05 (0.98, 1.14) |
| Human Immunodeficiency Virus Infection | 1.00 (0.84, 1.19) |
| Number of hospitalizations in the year prior | 1.18 (1.17, 1.18)* |
| Number of doctor visits in the year prior, every five visits | 1.02 (1.01, 1.02)* |
| Nursing home residence in prior 90 days, Yes vs. No | 1.07 (1.05, 1.09)* |
| PCP in the year prior admission, Yes vs. No | 0.99 (0.97, 1.00) |
| Comorbidity, Yes vs. No | |
| Congestive heart failure | 1.15 (1.13, 1.17)* |
| Valve disease | 1.04 (1.02, 1.06)* |
| Pulmonary circulation disease | 1.02 (0.99, 1.06) |
| Peripheral vascular disease | 1.02 (1.00, 1.04)* |
| Paralysis | 1.00 (0.97, 1.03) |
| Neurological disorder | 0.99 (0.97, 1.00) |
| Chronic pulmonary disease | 1.09 (1.07, 1.11)* |
| Diabetes mellitus without complication | 1.02 (1.00, 1.03) |
| Diabetes mellitus with complication | 1.06 (1.04, 1.08)* |
| Hypothyroidism | 0.98 (0.97, 1.00) |
| Renal failure | 1.10 (1.08, 1.13)* |
| Liver disease | 1.16 (1.12, 1.20)* |
| Peptic ulcer | 0.92 (0.76, 1.11) |
| AIDS | 1.03 (0.93, 1.14) |
| Lymphoma | 1.27 (1.21, 1.33)* |
| Metastatic cancer | 1.42 (1.37, 1.48)* |
| Solid tumor without metastasis | 1.12 (1.09, 1.15)* |
| Rheumatoid arthritis | 1.05 (1.02, 1.08)* |
| Coagulopathy | 1.07 (1.04, 1.10)* |
| Obesity | 0.97 (0.94, 0.99)* |
| Weight loss | 1.07 (1.04, 1.09)* |
| Fluid and electrolyte disorder | 1.09 (1.07, 1.11)* |
| Chronic blood loss anemia | 0.98 (0.94, 1.01) |
| Deficiency anemia | 1.08 (1.06, 1.10)* |
| Alcohol abuse | 1.02 (0.98, 1.07) |
| Drug abuse | 1.19 (1.14, 1.25)* |
| Psychosis | 1.02 (0.99, 1.04) |
| Depression | 0.99 (0.97, 1.01) |
| Hypertension | 1.00 (0.98, 1.02) |
| Hospital characteristics | |
| Hospital type | |
| Nonprofit | 1.00 |
| Proprietary | 1.02 (0.99, 1.06) |
| Government | 1.02 (0.98, 1.06) |
| Hospital size | |
| ≤ 200 | 1.00 |
| 201–350 | 0.95 (0.92, 0.99)* |
| 351–500 | 0.96 (0.91, 1.00) |
| > 500 | 0.97 (0.92, 1.02) |
| Medical school affiliation | |
| No affiliation | 1.00 |
| Major | 1.04 (0.98, 1.11) |
| Limited | 0.99 (0.94, 1.04) |
| Type of care during hospitalization | |
| Non-Hospitalist Generalist | 1.00 |
| Hospitalist | 1.01 (0.99, 1.03) |
| Both of the above | 1.11 (1.07, 1.14)* |
| Specialist | 1.05 (1.03, 1.07)* |
| Other | 1.00 (0.97, 1.03) |
*Statistically significant