Table 6 Logistic regression analysis for predicting unplanned readmission to ICU within seven days

Female vs. Male

1.558 (0.936–2.594)

0.0879

Patient age (years)

0.987 (0.969–1.005)

0.1472

Surgical/trauma ICU vs. Medical ICU

0.760 (0.380–1.520)

0.4379

Surgical vs. Medical Admissions

1.643 (0.773–3.493)

0.1972

Downgrade Unit: Progressive Care vs. Med/Surg

1.139 (0.671–1.936)

0.6297

COVID-19 Positive

2.121 (0.742–6.063)

0.1605

Charlson Comorbidity Score

1.285 (1.141–1.448)*

< 0.0001

RI Score at ICU Discharge

0.992 (0.976–1.008)

0.3030

Difference RI Score ICU Admit to Discharge

0.975 (0.960–0.990)*

0.0013

Decrease in RI score 24 h prior to ICU Discharge

0.945 (0.919–0.971)*

< 0.0001

Downgrade to lower level of care in RI warning

1.393 (0.830–2.338)

0.2101