Mid-arm and Chest Circumferences for Estimating Low Birthweight

Main Article Content

Achmad Surjono

Abstract

A prospective study was conducted to assess the diagnostic performance of mid-arm and chest circumferences on low birth weights in 1033 singleton newborn infants. The proportion of low birth weight was 11.7%. Strong correlations on birth weight (P<0.001) were found for mid-arm (r-0.85) and chest (r=0.86) circumferences. A mid-arm circumference of ≤9,5 cm was considered as cut-off level for low birth weight, with a sensitivity of 0.818, specificity 0.956 and positive predictive value 0. 712. Whereas that of chest circumference wa ≤29.5 cm with a sensitivity of 0. 785, specificity 0.895 and positive predictive value 0.497. Receiver operating characteristic (ROC) curves were used to compare their diagnostic accuracy. The area under these two ROC(± SE) were 0.954 ± 0.011 for mid-arm and 0.945 ± 0.012 for chest circumferences, respectively. Both areas showed significant differences with the area under chance line. No statistically significant difference was found between the area under ROC of mid-arm and chest circumferences.


The results showed that mid-arm and chest circumferences as simple and reliable measurements can be used in estimating low birth weight, in areas where the accurate weighing of newborn infants is not feasible.

Article Details

How to Cite
1.
Surjono A. Mid-arm and Chest Circumferences for Estimating Low Birthweight. PI [Internet]. 11Dec.2018 [cited 21Jul.2019];33(1-2):24-1. Available from: https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/2054
Section
Neonatology
Received 2018-12-11
Published 2018-12-11

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