Table 1.

Summary of Sample Data (n = 528 patients)

	% (n)
Gender
Male ♂	50.4 (266)
Female ♀	49.6 (262)
Social status
Low	28.0 (148)
Medium	49.2 (260)
High	22.7 (120)
Ethnicity
Caucasian	80.1 (423)
Non-Caucasian	19.9 (105)
Age
Mean	8.4 years
Range	7–10 years
7 years	30.3 (160)
8 years	24.2 (128)
9 years	23.5 (124)
10 years	22.0 (116)