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Original Research Communication |
1 From the Division of Nutrition and Physical Activity, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta (ESF, CG, and CB), and the Environmental Health Laboratories (AS) and the Division of Environmental Hazards and Health Effects (DMM), National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta.
Background: Carotenoids, a class of phytochemicals, may affect the risk of several chronic conditions.
Objective: Our objective was to describe the distributions and correlates of serum carotenoid concentrations in US children and adolescents.
Design: Using data from the third National Health and Nutrition Examination Survey (1988–1994), a cross-sectional study, we examined the distributions of serum concentrations of 
-carotene, ß-carotene, ß-cryptoxanthin, lutein and zeaxanthin, and lycopene among 4231 persons aged 6–16 y.
Results: After adjustment for age, sex, race or ethnicity, poverty-income ratio, body mass index status, HDL- and non-HDL-cholesterol concentrations, C-reactive protein concentration, and cotinine concentration, only HDL-cholesterol (P < 0.001) and non-HDL-cholesterol (P < 0.001) concentrations were directly related to all carotenoid concentrations. Age (P < 0.001) and body mass index status (P < 0.001) were inversely related to all carotenoid concentrations except those of lycopene. Young males had slightly higher carotenoid concentrations than did young females, but the differences were significant only for lycopene concentrations (P = 0.029). African American children and adolescents had significantly higher ß-cryptoxanthin (P < 0.001), lutein and zeaxanthin (P < 0.001), and lycopene (P = 0.006) concentrations but lower -carotene (P < 0.001) concentrations than did white children and adolescents. Mexican American children and adolescents had higher -carotene (P < 0.001), ß-cryptoxanthin (P < 0.001), and lutein and zeaxanthin (P < 0.001) concentrations but lower lycopene (P = 0.001) concentrations than did white children and adolescents. C-reactive protein concentrations were inversely related to ß-carotene (P < 0.001), lutein and zeaxanthin (P < 0.001), and lycopene (P = 0.023) concentrations. Cotinine concentrations were inversely related to -carotene (P = 0.002), ß-carotene (P < 0.001), and ß-cryptoxanthin (P < 0.001) concentrations.
Conclusion: These data show significant variations in serum carotenoid concentrations among US children and adolescents and may be valuable as reference ranges for this population.
Key Words: Antioxidants • ß-carotene • carotene • carotenoids • children • adolescents • C-reactive protein • ethnic groups • health surveys • sex distribution • third National Health and Nutrition Examination Survey
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