Table 1. Baseline Characteristics of Initial and Selected Hualapai Youth Participating in a School-Based Intervention to Prevent Diabetes, Arizona, 2004.

Characteristic	Initial Participants (N = 109), Mean (Standard Deviation)	Selected Participants (N = 71), Mean (Standard Deviation)	P Valuea
Age, y
Male	10.4 (1.1)	9.9 (0.8)	.63
Female	10.1 (1.4)	9.9 (1.0)	.63
Body mass index, kg/m2
Male	24.5 (5.5)	23.8 (4.8)	.50
Female	22.9 (5.5)	21.4 (4.7)	.50
Fasting blood glucose level, mg/dL
Male	109.5 (22.8)	110.5 (43.7)	.78
Female	107.4 (39.3)	110.8 (24.7)	.78

^a P values determined using t test.