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Table 4 Predictors associated with 30-day unplanned hospital readmission of ICU survivors

From: Predictors associated with unplanned hospital readmission of medical and surgical intensive care unit survivors within 30 days of discharge

 

Medical

Surgical

(n = 147,840)

(n = 339,228)

Variable

OR (95% CI)

OR (95% CI)

Teaching hospital

0.79 (0.75–0.84)

Hospital size

 < 399 beds

Reference

Reference

 400–799 beds

0.98 (0.93–1.05)

0.99 (0.94–1.04)

 > 800 beds

0.77 (0.69–0.87)

0.90 (0.84–0.97)

CCI

1.10 (1.08–1.12)

1.05 (1.04–1.06)

Category of primary admission diagnosis

 Cardiac

Reference

Reference

 Respiratory

1.30 (1.17–1.45)

1.51 (1.31–1.75)

 Neurologic

0.64 (0.58–0.70)

1.02 (0.95–1.09)

 Gastrointestinal

1.18 (1.02–1.36)

1.59 (1.46–1.73)

 Malignancy

0.85 (0.75–0.97)

1.18 (1.10–1.26)

 Metabolic and renal

1.25 (1.10–1.43)

1.58 (1.38–1.79)

 Other

0.93 (0.84–1.03)

0.99 (0.91–1.08)

Coma on admission

0.87 (0.76–0.99)

 

Hospital length of stay

 1–15 days

Reference

Reference

 16–30 days

1.44 (1.34–1.54)

1.21 (1.14–1.27)

 31–45 days

1.62 (1.47–1.78)

1.43 (1.34–1.53)

 > 45 days

1.58 (1.43–1.75)

1.56 (1.46–1.68)

Discharge destination

 Home

Reference

Reference

 Other hospital

0.48 (1.47–1.78)

0.53 (0.50–0.57)

 Skilled nursing facility

1.46 (1.26–1.69)

1.46 (1.23–1.73)

 Others

1.38 (1.02–1.65)

0.88 (0.70–1.08)

Stress ulcer prophylaxis

1.22 (1.15–1.29)

pRBC infusion

1.16 (1.05–1.28)

1.43 (1.37–1.51)

Low-dose steroid

1.14 (1.01–1.29)

1.08 (1.00–1.16)

Anticoagulation

0.81 (0.76–0.87)

TPN

1.05 (1.00–1.09)

Antibiotics

1.09 (1.02–1.17)

RRT

1.28 (1.15–1.41)

1.24 (1.15–1.34)

Ventilation

1.18 (1.09–1.27)

Tracheostomy

0.83 (0.74–0.95)

  1. ICU intensive care unit, OR odds ratio, CI confidence interval, CCI Charlson comorbidity index, pRBC packed red blood cells, FFP fresh frozen plasma, TPN total parental nutrition, RRT renal replacement therapy