Predictive value of IgE/IgG4 antibody ratio in children with egg allergy

Table 1 Clinical data of the negative food challenge (NFC) and positive food challenge (PFC) groups in the challenge test

	NFC	PFC	p value
Number of patients	45	60
Age (y), median (range)	4 (1–13)	5 (1–12)	0.06389*
Male/female (n)	30/15	34/26	0.4024*
Frequency of allergic symptoms at accidental ingestion
Once (n)	35	37	0.067**
2–10 times (n)	3	14
10 times (n)	7	9
Frequency of anaphylaxis at accidental ingestion (n)	4/45	16/60	0.025*
Duration since last episode (y; mean [SD])	3.2 (2.2)	3.4 (1.7)	0.3162*
Condition of elimination
Complete	38	51	0.844*
Partial^#	7	9

*, The χ2 test (2-tailed) was used; **, The Kruskal-Wallis rank test was used; ***, The Mann–Whitney U test (2-tailed) was used.
#: After the patients ate egg products or less than 1 g of heated eggs, complete elimination was performed before the challenge test.

ISSN: 1710-1492