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. 2012 Jul;130(1):39–45. doi: 10.1542/peds.2011-2094

TABLE 1.

Demographic Characteristics of Study Population (n = 665)

Characteristic Percent (n) or Median
Gender
 Female 55.0 (366)
 Male 45.0 (299)
Grade
 Third 29.5 (196)
 Sixth 37.3 (248)
 Ninth 33.2 (221)
Race/Ethnicity
 White 62.2 (414)
 African American 11.3 (75)
 Hispanic 7.5 (50)
 Asian/Pacific Islander 9.6 (64)
 Other/Mixed ethnicity and race 9.3 (62)
Parent marital status
 Married 77.0 (512)
 Single 7.0 (46)
 Divorced or separated 15.0 (100)
 Widowed 1.0 (7)
Annual income
 Minimum $0
 Median $86 500
 Maximum $900 000
Free/reduced lunch 18.3 (122)