|
Risk factor
|
Adjusted odds ratio (95 % C.I.)
|
P value
|
|---|
|
SpO2 < = 94
|
1.11 (1.02 - 1.21)
|
0.012
|
|
BUN < = 20
|
0.84 (0.77 - 0.92)
|
0.000
|
|
Systolic BP < = 100
|
1.12 (1.03 - 1.22)
|
0.007
|
|
Diastolic BP < = 62
|
1.37 (1.05 - 1.79)
|
0.019
|
|
Pulse > 99
|
1.29 (1.19 - 1.40)
|
0.000
|
|
Sodium > 145
|
1.48 (1.16 - 1.88)
|
0.001
|
|
BNP > 2400 or NT proBNP > 18000
|
1.28 (1.02 - 1.61)
|
0.034
|
|
Anion Gap > 18
|
1.57 (1.19 - 2.06)
|
0.001
|
|
Albumin < = 2
|
1.83 (1.34 - 2.50)
|
0.000
|
|
Albumin 2 – 3
|
1.45 (1.31 - 1.61)
|
0.000
|
|
CO2 > 30
|
1.34 (1.10 - 1.64)
|
0.004
|
|
CPK < = 60
|
1.20 (1.07 - 1.35)
|
0.002
|
|
HCT > 35
|
0.80 (0.74 - 0.87)
|
0.000
|
|
Lymphocyte < = 1.3
|
1.11 (1.01 - 1.21)
|
0.023
|
|
MCV > 100
|
1.24 (1.03 - 1.49)
|
0.022
|
|
Platelets < = 90
|
1.51 (1.24 - 1.84)
|
0.000
|
|
Platelets > 350
|
1.32 (1.16 - 1.49)
|
0.000
|
|
PT > 35
|
2.05 (1.42 - 2.96)
|
0.000
|
|
TSH > 7
|
1.48 (1.11 - 1.98)
|
0.008
|
|
AST > 40
|
1.28 (1.14 - 1.42)
|
0.000
|
|
Medicare payor
|
1.19 (1.08 - 1.31)
|
0.000
|
|
Medicaid payor
|
1.79 (1.55 - 2.08)
|
0.000
|
|
Male
|
1.14 (1.05 - 1.24)
|
0.001
|
|
Elective admission status
|
0.67 (0.59 - 0.77)
|
0.000
|
|
Prior ED visits in past year
|
1.03 (1.02 - 1.05)
|
0.000
|
|
Prior hospitalizations in past year
|
1.17 (1.13 - 1.21)
|
0.000
|
|
Age
|
1.01 (1.01 - 1.02)
|
0.000
|
|
Charlson Comorbidity index
|
1.09 (1.07 - 1.12)
|
0.000
|
- Abbreviations. BUN, blood urea nitrogen; BP, blood pressure; BNP, B-natriuretic peptide; CO2, carbon dioxide; CPK, creatinine kinase; TSH, thyroid stimulating hormone; AST, aspartate aminotransferase; HCT, hematocrity; MCV, mean cell volume aDerivation cohort; composite outcome of 30-day readmission or mortality
