Abstract
Mid-arm circumference measurement is a prerequisite for the selection of properly sized blood pressure cuffs for accurate blood pressure readings in children and youth. This study examined recent trends in the mid-arm circumference distribution and the distribution of corresponding recommended blood pressure cuff sizes using National Health and Nutrition Examination Survey III (1998-1994) and National Health and Nutrition Examination Survey 1999-2004 data. Both studies were complex, cross-sectional surveys providing nationally representative samples of the civilian noninstitutionalized US population. Children of 7-17 years of age were studied. A total of 2515 boys and 2596 girls participated in National Health and Nutrition Examination Survey III, and 3941 boys and 3917 girls in National Health and Nutrition Examination Survey 1999-2004. Mean mid-arm circumference and recommended National High Blood Pressure Education Program Working Group on High Blood Pressure in Children and Adolescents defined blood pressure cuff sizes were assessed by sex, age, and race/ethnicity. US boys aged 7-12 years and girls aged 7-12 and 13-17 years had significant increases in mid-arm circumference (P<0.05) across the two surveys. Moreover, from 1988-1994 to 1999-2004, there were statistically significant increases in the percentage of boys (age 7-12 and 13-17 years) and girls (age 13-17 years) needing large blood pressure adult cuffs (P<0.05). National Health and Nutrition Examination Survey 1999-2004 data show that both boys and girls aged 13-17 years had a mean mid-arm circumference > or =27 cm, which requires an adult blood pressure cuff fit. Furthermore, 52% boys and 42% girls aged 13-17 years, required a standard adult cuff fit. Mean mid-arm circumference has increased among US children and adolescents, with important implications for the accuracy of blood pressure measurement in clinical practice.
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