Table 2.

Univariate analysis of the association between PLT count (at admission & 14-days mean value) with baseline characteristics, adverse events and outcome of SAH.

Parameter	PLT count at admission		14-days mean PLT count
	OR (95% CI)	p-value	OR (95% CI)	p-value
Age, >55 years	0.65 (0.50–0.83)	0.001	0.65 (0.52–0.81)	<0.0001
Sex, female	1.95 (1.49–2.56)	<0.0001	1.51 (1.20–1.90)	0.001
Fisher Grade = 3-4	0.80 (0.56–1.13)	0.207	0.90 (0.66–1.24)	0.525
WFNS = 4-5	0.67 (0.52–0.86)	0.002	0.76 (0.61–0.94)	0.012
Treatment modality (clipping)	0.84 (0.65–1.08)	0.176	1.08 (0.86–1.36)	0.490
Acute hydrocephalus	0.73 (0.56–0.95)	0.021	0.91 (0.72–1.15)	0.410
Aneurysm rebleeding	0.61 (0.35–1.04)	0.069	0.64 (0.40–1.03)	0.067
Secondary rebleeding (not aneurysm-related)	0.46 (0.23–0.93)	0.030	0.52 (0.28–0.97)	0.039
Decompressive craniectomy	0.72 (0.54–0.95)	0.020	0.79 (0.62–1.00)	0.050
Medical treatment of ICP increase	0.75 (0.58–0.96)	0.023	0.75 (0.60–0.94)	0.011
Angiographic presence of cerebral vasospasm	1.09 (0.76–1.55)	0.651	1.32 (0.97–1.81)	0.082
DIND occurrence	0.81 (0.60–1.08)	0.151	0.88 (0.68–1.13)	0.306
Systemic infections	0.78 (0.60–1.02)	0.072	1.01 (0.80–1.27)	0.962
Sepsis	0.51 (0.24–1.05)	0.068	0.29 (0.15–0.57)	<0.0001
Acute coronary syndrome	1.31 (0.65–2.65)	0.451	1.01 (0.53–1.90)	0.982
Acute kidney failure	0.32 (0.10–1.00)	0.050	0.13 (0.04–0.38)	<0.0001
Cerebral infarction	0.91 (0.71–1.16)	0.430	0.71 (0.57–0.89)	0.002
In-hospital mortality	0.57 (0.41–0.80)	0.001	0.28 (0.20–0.39)	<0.0001
Unfavorable outcome at 6 months	0.58 (0.44–0.76)	<0.0001	0.45 (0.35–0.58)	<0.0001

WFNS: World Federation of Neurosurgical Societies; ICP: intracranial pressure; DIND: Delayed ischemic Neurological Deficit; OR: Odds Ratio; CI: Confidence Interval.