Table 2.

Statistical analysis of demographic and clinical baseline characteristics for optimal and non-optimal PaCO2 groups.

Parameter	Optimal PaCO2	Non optimal PaCO2	p	OR	95% CI
	%/mean ± SD	%/mean ± SD
Age (years)	52.7 ± 14.0	54.9 ± 13.6	0.136	–	–
Sex female	67.9%	66.4%	0.766	1.07	0.69–1.66
WFNS 4/5	31.2%	50.8%	< 0.001	0.44	0.28–0.68
Fisher 3/4	90.4%	91.3%	0.777	0.90	0.42–1.91
Treatment clipping	37.6%	42.0%	0.399	0.83	0.55–1.27

Statistically significant p-values are marked bold.