Table 3. Significant predictors of early improvement in the univariate analysis.

Variable	Odds ratio	95% Confidence interval	p
Age ≤ 65 y	3.63	1.56–8.45	0.0020
WFNS I–II vs III–V	4.48	2.09–9.61	< 0.0001
Discharge mRS (1–2 vs 3–5)	3.55	1.64–7.68	0.00092
Absence of delayed cerebral ischemia	2.33	1.00–5.42	0.045
No history of smoking	0.44	0.20–0.95	0.035
Absence of pneumonia	3.05	1.45–6.42	0.0027
Absence of hydrocephalus	2.73	1.29–5.76	0.0075
Absence of tracheostomy	2.90	1.38–6.09	0.0041
No decompression	2.62	1.14–6.02	0.020
Time in ICU (≤ 3 weeks vs > 3 weeks)	2.46	1.18–5.12	0.015

Univariate analysis via chi-square test was performed to detect the significant predictors of early improvement from discharge to 6 months. n = 156 (1 missing).