Association of abnormal carbon dioxide levels with poor neurological outcomes in aneurysmal subarachnoid hemorrhage: a retrospective observational study

Table 2 Multivariate analysis of factors that influenced unfavorable outcomes

Variables	OR	95% CI	p value
Age > 65 years	7.62	2.97–19.60	< 0.01
Sex (female)	1.01	0.38–2.67	0.98
H&K grade	2.43	1.53–3.87	< 0.01
Treatment modality (clip)	0.69	0.27–1.75	0.43
Maximum lactate levels during the first 24 h (mmol/L)	1.34	1.02–1.76	< 0.05
Maximum PaCO₂ level (mmHg)	1.11	1.03–1.21	< 0.01
Minimum PaCO₂ level (mmHg)	0.82	0.73–0.93	< 0.01

ISSN: 2052-0492