Table 1.

Demographics for Subjects

	1-Year Follow-up	Initial (Dropped-out)	P value*
Number of Subjects	98	18
Gender (% Males)	49 (50%)	7 (39%)	0.386
Race (% Caucasian)	48 (49%)	5 (28%)	0.097
Family History - Asthma/Allergy† (%Yes)	82 (85%)	11 (61%)	0.120
Maternal Smoking during Pregnancy (% Yes)	8 (8%)	5 (28%)	0.030

^*The p-values are for comparison of baseline characteristics between the dropped and non-dropped subjects using two-sample t-tests for continuous variables and Chi-square test for binary variables.

Smoking during pregnancy was different between dropped-out and non-dropped-out groups.

^†Family history not available for 1 subject