. 2020 Nov 12;17(22):8386. doi: 10.3390/ijerph17228386

Table 3.

Rules extracted from the decision tree.

Rule	Support (Training)	Deceased (Training)	Support (Test)	Deceased (Test)
$(A G E < 80)$ and $(S A T O_{2} < 83)$	4.0% (N = 39)	41.0%	3.5% (N = 15)	40.0%
$(A G E < 80)$ and $(S A T O_{2} \geq 83)$	74.4% (N = 731)	5.6%	72.4% (N = 309)	7.1%
$(A G E \geq 80)$ and $(S A T O_{2} < 84)$	2.9% (N = 28)	100%	3.5% (N = 15)	80.0%
$(A G E \geq 80)$ and $(S A T O_{2} \geq 84)$ and $(n o t R E S I D E N T I A L_I N S T I T U T I O N)$	16.8% (N = 165)	32.7%	19.0% (N = 81)	32.1%
$(A G E \geq 80)$ and $(S A T O_{2} \geq 84)$ and $(R E S I D E N T I A L_I N S T I T U T I O N)$	1.9% (N = 19)	73.7%	1.6% (N = 7)	71.4%