Table 2.

 Total and specific antibody titres in acute plasma in children with either infrequent episodic or frequent episodic/persistent asthma exacerbations

	Infrequent (n=29)	Frequent/persistent (n=23)
Total IgE Ig (kU/L)	538 (275–802)	641 (380–902)
IgE HDM (ng/mL)	31.3 (7.54–132)	81.1 (5.17–237)
IgE P6 (ng/mL)	0.1 (0.1–0.52)	0.1 (0.1–1.64)
IgG1 P6 (ng/mL)	9950 (4139–18 889)	4823 (126–6862) *
IgG1 HDM (ng/mL)	15 684 (2345–61 339)	3847 (765–16 853) *

Results show the mean of total IgE immunoglobulin with 95% confidence limits in parentheses and the median sum of specific HDM IgE, specific P6 IgE, specific P6 IgG1 and sum of specific HDM IgG1 with the interquartile range in parentheses.

^* Children with frequent episodic/persistent asthma exacerbations had lower IgG1 antibody titres to P6 and HDM allergens (P<0.05) than children with infrequent episodic asthma exacerbations.

HDM, house dust mite.