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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Stroke. 2013 Jan 10;44(2):469–476. doi: 10.1161/STROKEAHA.112.669341

Table 4. Relative Contribution of Risk Factors in Model Prediction of Inpatient Mortality & Length of Stay>4 days.

Patient Cohort Odds Ratio (OR)
Model 1
Unadjusted		 Model 2
Adjusted for
state residence		 Model 3
Adjusted for
patient age and
state residence		 Model 4
Adjusted for
patient age,
atrial fibrillation
and state
residence		 Model 5
Adjusted for all
patient risk
factors and
state residence		 Model 6
Adjusted for all
risk factors
excluding
patient age and
atrial fibrillation
Inpatient Mortality
    White Reference Reference Reference Reference Reference Reference
    Black 0.75*** 0.74*** 0.94 1.02 0.98 0.76***
    Hispanic 0.76*** 0.74*** 0.89** 0.95 0.98 0.83***
Length of Stay > 4 days
    White Reference Reference Reference Reference Reference Reference
    Black 1.41*** 1.32*** 1.44*** 1.52*** 1.43*** 1.30***
    Hispanic 1.08*** 1.18*** 1.25*** 1.31*** 1.29*** 1.21***

Notes:

1)

***, p < 0.001; **, p < 0.01; and * p < 0.05

2

Models 2 and 4 are based on logistic regressions and models 5 and 6 are based on hierarchical logistic regressions (with hospital level clustering).