Table 4.

Asymptomatic versus symptomatic individuals.

	Asymptomatic	Symptomatic
Number*	5/28	22/28
Wheal size mm	7.6	10.5**
	(5.7–8.6)	(5.3–15.7)
Endotoxin EU/gr	10,430	15,200**
Geometric mean (95% CI)	(6,620–16,432)	(8,128–28,415)
Der p 1 μg/gr	10.0	27.0***
Geometric mean (95% CI)	(5.4–18.6)	(15.3–46.7)

*Symptom information from one individual unavailable.

**P > 0.05.

***P = 0.04.