Table 3.

Characteristics of the S2OA^a) and S1OZ^b) groups

Variable	S2OA group	S1OZ group	p-value
Age (yr)	50.8±20.5	55.6±16.2	NS
Gender (cases)			0.017
Male	57	116
Female	9	47
Past medical history (cases)
Pulmonary tuberculosis	4 (6.1)	14 (8.6)	NS
Diabetes mellitus	6 (9.1)	16 (9.8)	NS
Hypertension	14 (21.2)	33 (20.2)	NS
Chronic obstructive pulmonary disease	4 (6.1)	4 (2.5)	NS
Emergency room stay (min)	760.8±919.5	830.2±708.2	NS
Ventilator care (cases)	46 (69.7)	40 (24.5)	<0.001
Intensive care unit care	48 (72.7)	54 (33.1)	<0.001

Values are presented as mean±standard deviation, number, or number (%).

NS, not significant.

^a)Patients with a systemic inflammatory response syndrome score of two or above.

^b)Patients with a systemic inflammatory response syndrome score of one or zero.