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Using concentration index to study changes in socio-economic inequality of overweight among US adolescents between 1971 and 2002.
Int J Epidemiol 2007; 36(4):916-25IJ

Abstract

BACKGROUND

The prevalence of overweight among adolescents continues to increase in the United States. This study examines the changes in socio-economic status (SES) inequality of overweight among US adolescents in the past three decades.

METHODS

Concentration Index (CI) was utilized to measure changes in the SES inequality in prevalence of overweight among US adolescents. Data collected from 15,286 adolescents in four waves of the National Health and Nutrition Examination Surveys (NHANES) between 1971 and 2002 and Hispanic Health and Nutrition Examination Survey (HHANES) (1982-84) were used.

RESULTS

Changes in the SES inequality of overweight among US adolescents and considerable gender and ethnic differences were detected. For boys, CI varied from 0.04 in NHANES I to -0.04 in NHANES 1999-2002; for girls, CI varied from -0.12 in NHANES I to -0.18 in NHANES III. Among whites, SES disparity peaked in NHANES III and declined thereafter. Patterns in black and Mexican-American adolescents were mixed.

CONCLUSIONS

Patterns of SES disparity of overweight among US adolescents varied across ethnic and gender groups, and have changed over time. Disparities have decreased since the early 1990s with the rise of the obesity epidemic. Obesity prevention and management efforts should target all SES groups in the United States.

Authors+Show Affiliations

School of Community and Environmental Health, Old Dominion University, Norfolk, VA 23529, USA. qzhang@odu.eduNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

17470489

Citation

Zhang, Qi, and Youfa Wang. "Using Concentration Index to Study Changes in Socio-economic Inequality of Overweight Among US Adolescents Between 1971 and 2002." International Journal of Epidemiology, vol. 36, no. 4, 2007, pp. 916-25.
Zhang Q, Wang Y. Using concentration index to study changes in socio-economic inequality of overweight among US adolescents between 1971 and 2002. Int J Epidemiol. 2007;36(4):916-25.
Zhang, Q., & Wang, Y. (2007). Using concentration index to study changes in socio-economic inequality of overweight among US adolescents between 1971 and 2002. International Journal of Epidemiology, 36(4), pp. 916-25.
Zhang Q, Wang Y. Using Concentration Index to Study Changes in Socio-economic Inequality of Overweight Among US Adolescents Between 1971 and 2002. Int J Epidemiol. 2007;36(4):916-25. PubMed PMID: 17470489.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Using concentration index to study changes in socio-economic inequality of overweight among US adolescents between 1971 and 2002. AU - Zhang,Qi, AU - Wang,Youfa, Y1 - 2007/04/30/ PY - 2007/5/2/pubmed PY - 2008/4/19/medline PY - 2007/5/2/entrez SP - 916 EP - 25 JF - International journal of epidemiology JO - Int J Epidemiol VL - 36 IS - 4 N2 - BACKGROUND: The prevalence of overweight among adolescents continues to increase in the United States. This study examines the changes in socio-economic status (SES) inequality of overweight among US adolescents in the past three decades. METHODS: Concentration Index (CI) was utilized to measure changes in the SES inequality in prevalence of overweight among US adolescents. Data collected from 15,286 adolescents in four waves of the National Health and Nutrition Examination Surveys (NHANES) between 1971 and 2002 and Hispanic Health and Nutrition Examination Survey (HHANES) (1982-84) were used. RESULTS: Changes in the SES inequality of overweight among US adolescents and considerable gender and ethnic differences were detected. For boys, CI varied from 0.04 in NHANES I to -0.04 in NHANES 1999-2002; for girls, CI varied from -0.12 in NHANES I to -0.18 in NHANES III. Among whites, SES disparity peaked in NHANES III and declined thereafter. Patterns in black and Mexican-American adolescents were mixed. CONCLUSIONS: Patterns of SES disparity of overweight among US adolescents varied across ethnic and gender groups, and have changed over time. Disparities have decreased since the early 1990s with the rise of the obesity epidemic. Obesity prevention and management efforts should target all SES groups in the United States. SN - 0300-5771 UR - https://www.unboundmedicine.com/medline/citation/17470489/Using_concentration_index_to_study_changes_in_socio_economic_inequality_of_overweight_among_US_adolescents_between_1971_and_2002_ L2 - https://academic.oup.com/ije/article-lookup/doi/10.1093/ije/dym064 DB - PRIME DP - Unbound Medicine ER -