Analysis of maternal and perinatal determinants of allergic sensitization in childhood

Table 1 Characteristics for positive SPT with and without available obstetric data

Variable	Obstetric and pos. SPT^a		Pos. SPT^b only		P
Variable	Median	IQR	Median	IQR	P
Age at test (years)	3.47	1.70–7.34	5.56	2.51–9.49	< 0.001*
n allergens tested	19	11–27	19	11–27	0.978*
Pos. allergens	4	2–7	4	2–8	0.213*
n pos. inh. allergens	2	0–3	2	1–4	0.019*
n pos. ing. allergens	2	0–5	2	0–5	0.616*

pos. positive, IQR interquartile range, inh. inhaled, ing. ingested, cross-sensitized, sensitized to both ing. and inh. allergens
* Mann–Whitney U test; ** chi-square test
^a(n = 286); ^b(n = 345)

ISSN: 1710-1492