Off hour admission to an intensivist-led ICU is not associated with increased mortality

Table 8 Logistic regression models for each separate hospital

Parameters in the model	P	Adjusted OR (95% CI)
RdGG
APACHE II expected mortality	<0.001	202 (108 to 372)
Age (per year)	<0.001	1.04 (1.03 to 1.05)
Admission type	<0.001
Admission type (1)	0.003	1.67 (1.19 to 2.34)
Admission type (2)	0.257	0.77 (0.50 to 1.21)
Off hours admission	0.266	1.19 (0.87 to 1.60)
GH
APACHE II expected mortality	<0.001	70 (37 to 130)
Age (per year)	<0.001	1.03 (1.02 to 1.04)
Admission type	<0.001
Admission type (1)	0.167	1.29 (0.90 to 1.84)
Admission type (2)	0.494	1.17 (0.75 to 1.83)
Off hours admission	0.508	1.10 (0.83 to 1.45)
OLVG
APACHE II expected mortality	<0.001	51 (32 to 83)
Age (per year)	<0.001	1.02 (1.01 to 1.03)
Admission type	0.187
Admission type (1)	0.590	1.12 (0.75 to 1.68)
Admission type (2)	0.391	0.81 (0.51 to 1.31)
Off hours admission	0.462	1.09 (0.87 to 1.37)

Admission type (1): urgent surgery vs elective surgery = reference.
Admission type (2): medical vs elective surgery = reference.
APACHE = acute physiology and chronic health evaluation score; CI = confidence interval; GH = Gelre Hospital, one of the participating hospitals; OLVG = Onze Lieve Vrouwe Gasthuis, one of the participating hospitals; OR = odds ratio; RDGG = Reinier de Graaf Groep, one of the participating hospitals.

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