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. Author manuscript; available in PMC: 2014 Sep 4.
Published in final edited form as: Clin Pediatr (Phila). 2010 Dec;49(12):1134–1142. doi: 10.1177/0009922810379043

Table 1.

Characteristics of US Adolescents Aged 12 to 19 Years: NHANES 1999–2004 Cohorts

Characteristic NHANES
1999–2000 2001–2002 2003–2004 1999–2004
Participants, n 2308 2417 2242 6967
Mean age (years) 15.4 15.5 15.4 15.5
Gender (%)
 Male 51.5 50.6 51.1 51.1
 Female 48.5 49.4 48.9 48.9
Race/ethnicity (%)
 Non-Hispanic whitea 56.8 63.8 64.9 62.1
 Non-Hispanic blacka 14.9 13.9 15.7 14.8
 Mexican Americana 13.0 9.0 11.1 10.9
 Other racesb 15.3 13.3 8.3 12.2

Abbreviation: NHANES, National Health and Nutrition Examination Survey.

a

Racial/ethnic groups evaluated in this study.

b

Other races category includes “Other/Multiracial” (5.3% of the NHANES 1999–2004 cohort) and “Other/Hispanic” (6.9% of the NHANES 1999–2004 cohort).