Table 4 Age, sex and hospital ward where the patients died relative to the frequency of patients in classes I and II of diagnostic comparison (stepwise logistic regression).

Variable	p Value	OR	95% CI
Age (in decades)	<0.001	1.1623	1.0680 to 1.2707
Sex: male vs female	0.079	1.5018	0.9577 to 2.3787
Hospital ward: intensive care units vs emergency unit and others	0.009	0.5279	0.3240 to 0.8473