Table 3.

Results of SPTs to each allergen in non-atopic (n = 92) and atopic subjects (n = 71)

		Pea		Peanut		Soybean		Lupin
		Non-atopic	Atopic	Non-atopic	Atopic	Non-atopic	Atopic	Non-atopic	Atopic
P−	n	78	43	81	56	79	51	76	55
	%	84.8	60.6	88.0	78.9	85.9	71.8	82.6	77.5
P?	n	12	18	9	12	10	15	14	12
	%	13.0	25.4	9.8	16.9	10.9	21.1	15.2	16.9
P+	n	2	10	2	3	3	5	2	4
	%	2.2	14.1	2.2	4.2	3.3	7.0	2.2	5.6
P-value*		0.001		0.313		0.079		0.536
(95% CI)		0.0003–0.001		0.304–0.322		0.074–0.084		0.526–0.545

Figures represent numbers or precentage of subjects.

SPT, skin prick test; P⁻, negative SPT; P^?, potentially positive SPT; P⁺, positive SPT.

^*Monte Carlo significance (2-sited) with the Fisher's exact test (significant for P ≤ 0.05) for differences in prevalence rates of SPT reactivity including negative, potentially positive, and positive SPTs between non-atopic and atopic subjects.