TABLE 3.
Characteristics According to 90-Day Readmission Status
| Characteristic | 90-d Readmission (n = 585) | No 90-d Readmission (n = 7,052) | P Value |
|---|---|---|---|
| Age, y | 55.0 ± 17.8 | 56.8 ± 28.7 | .204 |
| Male sex | 57.3 | 58.3 | .627 |
| Black | 28.7 | 28.4 | .281 |
| BMI, kg/m2 | 24.7 [20.5, 30.1] | 26.3 [22.0, 31.6] | < .001 |
| Length of stay, d | 19.0 ± 29.3 | 23.0 ± 26.2 | < .001 |
| Mechanical ventilation | 20.9 | 24.6 | .044 |
| Charlson comorbidity score | 5.0 [3.0, 7.0] | 3.0 [1.0, 6.0] | < .001 |
| Congestive heart failure | 30.4 | 17.2 | < .001 |
| Myocardial infarction | 13.2 | 9.0 | .003 |
| COPD | 58.3 | 30.3 | < .001 |
| Diabetes mellitus | 38.6 | 19.9 | < .001 |
| Chronic kidney disease | 22.1 | 11.7 | < .001 |
| Underlying malignancy | 11.5 | 10.1 | .433 |
| Leukemia | 9.2 | 5.4 | < .001 |
| HIV | 2.9 | 1.8 | .063 |
| Cirrhosis | 13.8 | 8.0 | < .001 |
| Pneumonia on admission | 51.8 | 45.3 | .002 |
| Hospital-acquired pneumonia | 40.5 | 45.5 | .021 |
| VAP | 7.7 | 9.3 | .202 |
| Antibiotic-susceptible bacteria | 17.6 | 20.7 | .071 |
| Potentially antibiotic-resistant bacteria | 43.8 | 28.2 | < .001 |
| Viral pathogen | 2.6 | 2.3 | .731 |
| Culture-negative pneumonia | 36.1 | 48.7 | < .001 |
Values expressed as mean ± SD, median [25th percentile, 75th percentile], or %. 90-d readmission status among the hospital survivor cohort (n = 7,637). See Table 1 legend for expansion of abbreviation.