Table 3. Results from the multivariate logistic regression analysis of a poor prognosis in patients.

Variable	β	SE	Wald χ2	p	OR	95% CI
Age	0.137	0.049	7.829	0.005	1.146	1.042–1.262
Disturbance of consciousness	1.823	0.746	5.968	0.015	6.190	1.434–26.723
≥50% slow waves	3.663	1.217	9.067	0.003	38.985	3.592–423.073

CI: confidence interval, OR: odds ratios, SE: standard error.