Risk factors of acute coagulation dysfunction after aneurysmal subarachnoid hemorrhage

Table 1 Basic clinical characteristics of patients with aneurismal clipping

General information	Normal 86 cases	Coagulopathy 51 cases	χ² value	P value
Age
< 65 years	77	37	6.612	0.010
≥ 65 years	9	14
Sex
Male	39	20	0.491	0.483
Female	47	31
Smoking
Yes	16	5	6.563	0.010
No	70	81
Alcohol
Yes	8	1	5.745	0.017
No	78	85
Hypertension
Yes	41	19	0.918	0.338
No	49	32
Diabetes
Yes	3	3	0.438	0.508
No	83	48
Hunt-Hess grade
I–III	73	42	0.152	0.697
IV–V	13	9
Fisher grade
1–2	46	31	0.692	0.405
3–4	40	20
Operation time
≤ 3 h	41	29	1.082	0.298
> 3 h	45	22
Intraoperative total infusion volume
≤ 2000 ml	14	3	47.300	0.000
2000–4000 ml	61	37
≥ 4000 ml	11	11
Intraoperative blood loss
≤ 300 ml	50	28	20.470	0.000
300–600 ml	13	8
≥ 600 ml	23	15
Intraoperative transfusion
Yes	7	10	3.874	0.049
No	79	41
Intraoperative hemostatic drug
Yes	13	9	0.152	0.697
No	73	42
Calcium reduction
< 1.20 mg/dl	10	17	60.223	0.000
0–1.20 mg/dl	65	31
≥ 1.20 mg/dl	11	3

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