Table 1.

Demographics of Asthma Patients and Control Group^*

	Patients (n=79)	Control subjects (n=54)	p Value
Age, yr, mean±SD (range)	35±15 (17-66)	36±15 (18-69)	NS
Sex, m:f	33:46	26:28	NS
NPA	79 (100)	54 (100)	NS
Paired serology	57 (72)	23 (43)	NS
Single serology	21 (27)	23 (43)	NS
No serology	1 (1)	8 (14)	<0.01
Previous asthma	79 (100)	11 (20)	<0.001

^*NS=not statistically different; n=number of subjects recruited; numbers in parentheses=percent of total number of patients or control subjects.