Table 4.

Regression Results for Patient Characteristics Associated with Length of Stay (in days)

	Regression coefficient (Standard Error)	P	Regression coefficient (Standard Error)	P
Intercept	3.98 (0.20)		3.58 (1.14)	< 0.01
Presence of an Interpreter
Neither admission nor discharge	2.31 (0.53)	<0.001	1.49 (0.46)	< 0.01
Discharge, but not admission	0.87 (0.36)	0.016	0.76 (0.32)	0.02
Admission, but not discharge	0.74 (0.29)	0.011	0.25 (0.25)	0.33
Both admission and discharge	Reference		Reference
Patient’s Preferred Language
Spanish			–0.48 (0.38)	0.21
Portuguese			–0.63 (0.51)	0.22
Vietnamese			–0.27 (0.57)	0.64
Albanian			–0.50 (0.59)	0.39
Russian			0.13 (0.75)	0.86
Other			Reference
Gender
Male			0.69 (0.23)	< 0.01
Female			Reference
Diagnosis of Cardiovascular Disease
Not Cardiovascular disease			–2.07 (0.33)	< 0.001
Cardiovascular disease			Reference
Age
Age in years			–0.09 (0.04)	0.02
Age in years squared			0.001 (0.001)	0.01
Illness Severity
Severity weight			2.30 (0.14)	<0.01
Severity weight squared			–0.02 (0.01)	0.01