Table 3.

Assessment of the score value from each independent predictor factor

Variable	B	SE	B/SE	${\displaystyle \frac{\left(\mathrm{B}/\mathrm{S}\mathrm{E}\right)}{\mathrm{l}\mathrm{o}\mathrm{w}\mathrm{e}\mathrm{s}\mathrm{t}\left(\mathrm{B}/\mathrm{S}\mathrm{E}\right)}}$	Score
Age (years)
<65 (ref)
65–75	0.923	0.232	3.98	3.92	4
>75	1.458	0.290	5.03	4.96	5
History of cerebrovascular disease	0.703	0.321	2.19	2.16	2
Heart rate (beat per minute)
≤100 (ref)
>100	0.623	0.266	2.34	2.31	2
Shock Index*
≤0.70 (ref)
0.71–1.00	0.767	0.238	3.22	3.18	3
>1.00	1.392	0.345	4.03	3.98	4
Killip class
I (ref)
II	0.284	0.280	1.01	1.00	1
III	1.718	0.415	4.14	4.08	4
IV	1.913	0.265	7.22	7.12	7

*Shock Index is calculated by heart rate divided by systolic blood pressure.