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Am J Epidemiol. 1975 Jun;101(6):489-94.

Cuff bladder size in a blood pressure survey of children.

Abstract

To investigate whether cuff bladder dimensions relative to the length and circumference of the upper arm affect the outcome of epidemiologic blood pressure surveys, multiple observers took multiple measurements on each of 92 grade school children from Franklinton and 351 children from Bogalusa, Louisiana. For the present study, the broad, hard surrounding cuff of the Physiometrics blood pressure recorder using a transducer embedded in the ample cuff bladder gave "true readings." Baumanometer readings were performed using standard cuff sizes selected according to currently recommended criteria. "Excess pressure reading" equal to mean Baumanometer reading minus mean true reading. "Deficient cuff bladder length" equal to percentage of upperarm circumference not covered by the rubber bladder. Pearson correlation coefficients for the two groups of children supported the hypothesis (at the 5% level of significance) that deficient cuff bladder length is associated with excess pressure reading. The relevant correlation coefficients for the two groups of children were 0.18 and 0.31 (systolic pressure) and 0.24 and 0.19 (diastolic pressure). In addition to sufficient cuff width, the complete surrounding of the entire arm circumference by the rubber bladder is recommended for epidemiologic studies of children.

[Indexed for MEDLINE]

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