Table 1.

Descriptive Statistics for Puerto Rican Study Participants Recruited from the Island (n = 836)

	Asthma Cases	Asthma Controls	P Value
No. of participants	720	116
Age, mean ± SD, yr	12.4 ± 3.3	13.1 ± 1.7	0.01*
Sex, M, n (%)	408 (56.7)	63 (54.3)	0.9†
FEV1, mean ± SD, L	2.3 ± 0.8	3.0 ± 0.7	2.2 × 10−16*
Height, mean ± SD, cm	150.1 ± 13.6	157.5 ± 10.4	3.2 × 10−8*
Ancestry, mean ± SD, %
African	22.9 ± 11.9	23.6 ± 8.1	0.5*
Native American	10.5 ± 3.0	10.7 ± 2.8	0.4*
European	66.5 ± 11.4	65.6 ± 8.0	0.4*

^*Unpaired two-sample t test was conducted for continuous variables.

^†Two-proportion z-test was performed for categorical variables.