Association of the Frequency of Respiratory Illness in Early Childhood with a Change in the Distribution of Blood Lymphocyte Subpopulations

Table 1 Characteristics of Children in Study

Characteristic	N	%
Female	73	45
Has sibling(s)	73	66
One parent has some university education	73	56
Family income <$50,000 (Canadian) per year	72	51
Parental history of asthma or allergies	72	56
Ever cared for outside home	73	81
Exposed to environmental tobacco smoke >0.5 h/wk	73	41

ISSN: 1710-1492