Table 1.

Baseline characteristics (weighted) of patients who received an HIV test versus a spirometry or allergy test.

	HIV serology	Spirometry	Allergy test
Age (mean, SE)	27.0 (2.5)	38.1 (.4.9)	27.8 (5.8)
Gender
Male	28.7%	31.6%	33.1%
Female	71.3%	68.4%	66.9%
Race
White	55.6%	77.2%	82.6%
Black	41.4%	21.6%	8.6%
Asian	2.6%	0.7%	6.3%
American Indian	0.4%	0.5%	2.5%
Visiting hospital in urban area
Yes	97.7%	96.5%	97.6%
No	2.3%	3.5%	2.4%
Total number of patients tested in sample	1131	171	58
Most common primary reason for visit (% of cases)	Routine prenatal exam (36.9% of HIV visits)	Cough (12.1% of spirometry visits)	Allergies (9.3% of allergy testing visits)