Table 4.

Logistic regression: predictors of unfavorable outcome.

Table 4a. Acute subdural hematoma
Covariates	Odds ratio(95% C.I.)	Coefficient	P-value	C-statistic	Optimism-corrected C-statistic
Admission Age > 65	4.25 (1.40, 12.89)	1.4472	0.0105	0.889	0.874
Female sex	4.01 (1.37, 11.73)	0.6945	0.0111
Pre-admission mRS	3.29(1.83,5.93)	1.1910	<0.0001
Neuropsychiatric features	6.51 (1.98,21.44)	1.8738	0.0021
Focal neurologic deficit	5.74(1.95, 16.95)	1.7477	0.0016
Table 4b. Subacute and chronic subdural hematoma
Covariates	Odds ratio (95% C.I.)	Coefficient	P-value	C-statistic	Optimism-corrected C-statistic
Age > 65	3.06 (1.28,7.31)	1.1175	0.0120	0.837	0.836
Pre-admission mRS	3.62 (2.43, 5.40)	1.2867	< 0.0001
Neuropsychiatric symptoms	2.50(1.09,5.76)	0.9163	0.0315

Abbreviation: mRS: modified Rankin scale.