Table 4.

Logistic multivariate regression analyses on prolonged LOS, increased cost, and non-routine discharge disposition

Variables	Prolonged LOS		Increased cost		Non-routine discharge
Frailty risk category	OR (95% CI)	P value	OR (95% CI)	P value	OR (95% CI)	P value
Low	Reference
Intermediate	2.38 (1.84 to 3.09)	<0.001	2.15 (1.66 to 2.77)	<0.001	2.13 (1.79 to 2.55)	<0.001
High	4.49 (3.36 to 6.00)	<0.001	3.62 (2.71 to 4.83)	<0.001	4.17 (3.26 to 5.33)	<0.001
Age	0.99 (0.99 to 0.99)	0.038	0.99 (0.98 to 0.99)	0.003	1.04 (1.03 to 1.05)	<0.001
Female sex	0.91 (0.79 to 1.04)	0.172	0.86 (0.74 to 0.99)	0.035	0.76 (0.65 to 0.88)	<0.001
Aphasia	1.63 (1.32 to 2.01)	<0.001	1.35 (1.09 to 1.66)	0.005	1.68 (1.35 to 2.11)	<0.001
Dysphagia	3.00 (2.55 to 3.52)	<0.001	2.04 (1.72 to 2.41)	<0.001	3.95 (3.20 to 4.87)	<0.001
Headache	0.72 (0.49 to 1.07)	0.101	0.51 (0.32 to 0.83)	0.006	0.50 (0.34 to 0.73)	<0.001
Aneurysm location
Anterior	Reference
Posterior	1.02 (0.87 to 1.20)	0.824	1.05 (0.89 to 1.23)	0.587	0.85 (0.72 to 0.99)	0.041
Unspecified	1.00 (0.85 to 1.17)	0.954	1.10 (0.93 to 1.30)	0.254	1.30 (1.11 to 1.53)	<0.001
Number of adverse events
0	Reference
1	4.20 (2.61 to 6.76)	<0.001	2.81 (1.87 to 4.24)	<0.001	1.89 (1.52 to 2.36)	<0.001
>1	19.75 (12.73 to 30.65)	<0.001	14.40 (9.99 to 20.73)	<0.001	6.74 (5.55 to 8.18)	<0.001

LOS, length of stay.