Serum and Salivary IgE, IgA, and IgG₄ Antibodies to Dermatophagoides pteronyssinus and Its Major Allergens, Der p1 and Der p2, in Allergic and Nonallergic Children

Table 2

Correlation between serum and salivary levels of IgA and IgG4 to Dermatophagoides pteronyssinus (Dpt) crude extract and its major allergens (Der p1 and Der p2) in allergic and nonallergic children.

Groups	Serum versus saliva
	IgA	IgG4	IgA	IgG4	IgA	IgG4
	anti-Dpt	anti-Dpt	anti-Der p1	anti-Der p1	anti-Der p2	anti-Der p2
Allergic	𝑟=0.1802	𝑟=0.3667	𝑟=−0.0519	𝑟=0.3551	𝑟=−0.0547	𝑟=0.2901
(𝑛=72)	𝑃>0.05	* 𝑃<0.001	𝑃>0.05	* 𝑃<0.001	𝑃>0.05	* 𝑃<0.05
Nonallergic	𝑟=0.2640	𝑟=−0.0396	𝑟=0.3407	𝑟=0.1894	𝑟=0.5209	𝑟=0.2970
(𝑛=14)	𝑃>0.05	𝑃>0.05	𝑃>0.05	𝑃>0.05	𝑃>0.05	𝑃>0.05

𝑟 = Spearman correlation coefficient; *statistical significance was set for 𝑃<0.05.