Unadjusted and adjusted ORs and 95% CIs (95% CI) for early readmission/death (0–7 days)
| Variable | Unadjusted OR (95% CI) | P value | Adjusted OR (95% CI)* | P value |
| Malnourished | 4.57 (1.69 to 12.37) | 0.001 | 5.01 (1.69 to 14.75) | 0.009 |
| Age | 1.00 (0.96 to 1.05) | 0.73 | 1.00 (0.94 to1.05) | 0.80 |
| Female sex | 0.42 (0.19 to 0.89) | 0.03 | 0.42 (0.17 to 1.04) | 0.06 |
| Total comorbidities | 1.08 (0.95 to 1.23) | 0.25 | 1.15 (0.96 to 1.38) | 0.13 |
| Charlson Comorbidity Index | 1.16 (0.96 to 1.40) | 0.12 | 1.08 (0.84 to 1.39) | 0.55 |
| Medications during index admission | 0.97 (0.88 to 1.05) | 0.47 | 0.91 (0.81 to 1.02) | 0.12 |
| LOS of index admission | 1.03 (1.01 to 1.04) | 0.001 | 1.03 (1.00 to 1.05) | 0.02 |
| Admission in last 6 months prior to index admission | 0.77 (0.53 to 1.12) | 0.13 | 0.66 (0.27 to 1.58) | 0.35 |
| Principal diagnosis index admission | ||||
| Reference (respiratory illness) | – | – | – | – |
| CVS | 0.63 (0.23 to 1.75) | 0.38 | 0.63 (0.20 to 2.04) | 0.44 |
| CNS | 0.61 (0.16 to 2.32) | 0.48 | 0.34 (0.06 to 1.93) | 0.23 |
| GIT | 0.54 (0.13 to 2.59) | 0.44 | 0.42 (0.07 to 2.36) | 0.33 |
| Falls | – | – | – | – |
| Urinary | – | – | – | – |
| Miscellaneous | 0.61 (0.23 to 1.61) | 0.31 | 0.35 (0.11 to 1.12) | 0.07 |
| ICU hours during index admission | 1.03 (0.99 to 1.02) | 0.56 | 1.01 (0.97 to 1.05) | 0.63 |
| Total MET calls index admission | 1.55 (0.95 to 2.54) | 0.08 | 0.84 (0.31 to 2.22) | 0.72 |
*OR determined using multivariable logistic regression (using early/late readmissions or death as outcome variable).
CNS, central nervous system; CVS, cardiovascular; GIT, gastrointestinal; ICU, intensive care unit; LOS, length of hospital stay; MET, medical emergency team.