Allergen-Specific IgG Antibodies Purified from Mite-Allergic Patients Sera Block the IgE Recognition of Dermatophagoides pteronyssinus Antigens: An In Vitro Study

Table 1

Demographic and clinical characteristics of the study subjects.

Characteristics	Groups		𝑃 value
	Atopic	Nonatopic
Number of subjects	36	15	—
Age (year)
Mean ± SD	24.6 ± 5.8	28 ± 11.64	0.1725^a
Sex (M : F)	13 : 23	2 : 13	0.1770^b
Positive skin prick test (𝑛, %)
Dermatophagoides pteronyssinus	36 (100%)	0	<0.0001^b
Dermatophagoides farinae	35 (97%)	0	<0.0001^b
Blomia tropicalis	23 (64%)	0	<0.0001^b
Blatella germanica	10 (28%)	0	0.0009^b
Periplaneta americana	9 (25%)	0	0.0022^b
Alternaria alternata	2 (6%)	0	0.4930^b
Felis domesticus	19 (53%)	0	<0.0001^b
Canis familiaris	14 (39%)	0	<0.0001^b

aStudent’s 𝑡-test; bFisher’s exact test (𝑃<0.05); SD: standard deviation.