Table 1.

Demographics and symptoms of entire cohort and those with serum results

Characteristic	Entire Cohort (n=274)	Subset with serum results (n=146)
Age: mean ± std. dev	27 ± 6.0 years	28 ± 6.4 years
Place of birth
-Mainland United States	203 (74%)	108 (74%)
-Puerto Rico	55 (20%)	26 (18%)
-Other	16 (6%)	12 (8%)
Main language spoken at home
-English	208 (76%)	107 (73%)
-Spanish	66 (24%)	39 (27%)
Doctor diagnosed Asthma* n (%)	173 (63%)	92 (63%)
Doctor diagnosed Allergy * n (%)	187 (68%)	96 (66%)

^*The exact wording of the questions were, “Has a doctor ever said that you had asthma?” and “Has a doctor ever said that you had allergy?”