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Serum retinol, beta-carotene, alpha-tocopherol and cholesterol in healthy French children.

Age- and sex-specific reference intervals of data derived from a healthy paediatric population are presented for retinol, beta-carotene, alpha-tocopherol, cholesterol and related proteins in serum. Age was an important covariate for the micronutrient concentration values. Retinol was highly correlated with alpha-tocopherol and cholesterol. Strong correlation was found with both beta-carotene and cholesterol. Serum levels were considered for their appropriateness as indicators of micronutrient status.