Table 4.

Multivariable Linear Regression. Patient Factors Associated With Hospital Length of Stay

Patient Characteristics	OR (95% CI)
Typical symptom vs atypical symptom	1.01 (0.93, 1.09)
Age	0.98 (0.97, 0.99)*
Gender (male vs female)	0.93 (0.86, 1.00)
Race
Black vs White	0.99 (0.89, 1.10)
Asian vs White	1.11 (0.96, 1.28)
Other vs White	1.05 (0.95, 1.17)
Unknown vs White	0.80 (0.99, 1.22)
Comorbidity Index	1.01 (0.99, 1.02)
Admission from (facility vs home)	0.69 (0.62, 0.76)*
MEWS (scores > 4, severely ill, vs scores 1–4)	0.87 (0.95, 1.04)
First documented oxygen delivery
Nasal cannula vs none	1.47 (1.33, 1.63)*
Nonrebreather vs none	1.65 (1.92, 2.23)*
Mechanical ventilation vs none	1.99 (1.62, 2.45)*
DNR
No DNR at all vs late DNR	0.75 (0.68, 0.82)*
Early DNR vs late DNR	0.32 (0.27, 0.38)*

Notes: CI = confidence interval; Comorbidity Index = Charlson Comorbidity Index (without age component); DNR = Do-Not-Resuscitate; MEWS = Modified Early Warning Score; OR = odds ratio.

*p < .0001.