Table 3.

Demographic information of the subjects tested

	Total Cohort (n = 321)	Positive Subjects (n = 31)	Negative Subjects (n = 290)
Median age	37 (13)	36 (14)	37 (13)
Gender
Male	91 (28%)	9 (29%)	82 (28%)
Female	230 (72%)	22 (71%)	208 (72%)
Race
Caucasian	133 (41%)	13 (42%)	120 (41%)
African American	147 (46%)	16 (52%)	131 (45%)
Hispanic	13 (4%)	2 (6%)	11 (4%)
Other	29 (9%)	0	29 (10%)
Medical Problems
Asthma	66 (21%)	7 (23%)	59 (20%)
Hypertension	61 (19%)	8 (26%)	53 (18%)
History of Smoking	41 (13%)	3 (10%)	38 (13%)
Diabetes	28 (9%)	5 (16%)	23 (8%)
No Medical History	176 (55%)	16 (52%)	160 (55%)
Symptoms
Cough	93 (29%)	14 (45%)	79 (27%)
Headache	68 (21%)	11 (35%)	57 (20%)
Fever/Chills	67 (21%)	11 (35%)	56 (19%)
Shortness of Breath	33 (10%)	3 (10%)	30 (10%)
No Symptoms	127 (40%)	6 (19%)	121 (42%)