Clinical characteristics and risk factors of intracranial hemorrhage after spinal surgery

Table 1 Demographics and health economics in the two groups, n (%)

	Hemorrhage group, n = 6	Control group, n = 30	P value
Age (yr)	71.33 ± 7.45	58.39 ± 8.07	0.001a
Gender (Male)	3 (50)	17 (56.7)	1.000
BMI (kg/m2)	27.16 ± 2.17	26.47 ± 3.72	0.667
Hypertension	5 (83.3)	15 (60)	0.169
Diabetes mellitus	1 (16.7)	5 (16.7)	1.000
Hyperlipidemia	1 (16.7)	3 (10)	0.535
Coronary heart disease	0 (0)	2 (6.7)	1.000
Cerebral vascular disease	3 (50)	2 (6.7)	0.024a
Smoking	2 (33.3)	3 (10)	0.186
Alcohol drinking	1 (16.7)	2 (6.7)	0.431
Hospital Cost (RMB)	242119.1 ± 87610.0	96290.7 ± 32029.9	0.009a
Admission ADL	78.33 ± 31.73	90.33 ± 14.50	0.403
Discharge ADL	40.00 ± 25.88	75.40 ± 18.29	0.019a
LOS (d)	60.17 ± 74.71	13.27± 3.73	0.185
ICU stay (h)	310.18 ± 235.82	1.26 ± 4.85	0.024a

^aP < 0.05.

BMI: Body mass index; ADL: Activity daily living; LOS: Length of hospital stay; ICU: Intensive care unit.