TABLE 1.
Infection and organ dysfunction types for severe sepsis patients
| N (Col %) | Unplanned 7-Day Readmission % (95% CI) |
Unplanned 30-Day Readmission % (95% CI) |
|
|---|---|---|---|
| All Eligible Discharges | 2,808,754 | 3.9 (3.9–3.9) | 10.8 (10.7–10.8) |
| Severe Sepsis (Infection + Organ Dysfunction or Coded SS) Present on Hospital Admission |
216,328 | 6.9 (6.8–7.0) | 19.9 (19.8–20.1) |
| ICD-9 Infection Category | |||
| Infectious and Parasitic Diseases | 104,012 (48.1) | 7.1 (7.0–7.3) | 20.4 (20.2–20.7) |
| Respiratory System | 72,992 (33.7) | 6.6 (6.4–6.7) | 19.1 (18.9–19.4) |
| Digestive System | 25,150 (11.6) | 9.8 (9.5–10.2) | 26.5 (25.9–27.0) |
| Genitourinary | 85,015 (39.3) | 6.6 (6.4–6.8) | 19.1 (18.8–19.3) |
| Skin and Subcutaneous Tissue | 22,656 (10.5) | 6.3 (6.0–6.7) | 18.8 (18.2–19.3) |
| Other | 28,689 (13.3) | 7.5 (7.2–7.8) | 22.1 (21.6–22.5) |
| ICD-9 Organ Dysfunction Category | |||
| Cardiovascular | 46,253 (21.4) | 7.2 (7.0–7.4) | 20.0 (19.7–20.4) |
| Hematological | 36,001 (16.6) | 7.6 (7.3–7.8) | 21.4 (21.0–21.9) |
| Neurologic | 24,180 (11.2) | 7.2 (6.9–7.5) | 19.3 (18.8–19.8) |
| Renal | 115,385 (53.3) | 7.1 (7.0–7.3) | 20.1 (19.9–20.4) |
| Respiratory | 52,201 (24.1) | 7.0 (6.8–7.3) | 20.5 (20.1–20.8) |
| Hepatic | 2,228 (1.0) | 8.6 (7.4–9.8) | 21.9 (20.2–23.6) |
| ICD-9 Coded Severe Sepsis | 32,879 (15.2) | 7.6 (7.3–7.8) | 20.4 (19.9–20.8) |
Legend: Column percentages relative to the total number of severe sepsis cases and may exceed 100% because select patients presented with multiple infections and/or organ dysfunctions. 95% confidence intervals estimated using the exact binomial method for all proportions. CI = confidence interval; SS = severe sepsis; ICD-9 = international classification of diseases, 9th revision.