Table 1

History of patient illness correlated to survival

	No	Yes	Total
Chest pain	40	8	48
	83.3	16.7	9.4
	9.2	10.3
Abdominal pain	18	1	19
	94.7	5.3	3.7
	4.2	1.3
SOB	27	5	32
	84.4	15.6	6.3
	6.2	6.4
Mental status change	25	9	34
	73.5	26.5	6.7
	5.8	11.5
Other	41	13	54
	75.9	54.1	10.6
	9.5	11.7
Cardiac arrest	243	37	280
	86.8	13.2	54.8
	56.1	47.4
Unknown	36	5	41
	87.8	12.2	8.0
	8.3	6.4
	433	78	511	χ² Pearson correlation
	84.7	15.3	100.0	p = 0.27675