Sensitivity And Specificity Of Crandal And Ilayperuma’s Formula To Predict Adult Weight And Height
2021
Many medical conditions do not allow direct weighing or measurement of body height. The circumference of the upper arm (CUA) is an alternative in determining body weight, while the ulna length can be used as an alternative for height. The aim of this study was to identify the sensitivity and specificity of Crandal and Ilayperuma’s Formula to predict adult weight and height in Indonesia, especially in Pekanbaru. This study conducted using a quantitative approach with cross sectional design and involving 116 respondents who recruited using accidental sampling. The instrument used is a questionnaire, manual weight scales, metlin, and heel microtoise. Data were analyzed using spearman to aand logistic regression test. The results showed that the sensitivity value of the Crandal and Ilayperuma’s formula were 78,2% and 63,4%. Meanwhile, the specificity value of Crandal and Ilayperuma’s formula were 75,4% and 80%. The Area Under the Curve (AUC) values in the Crandal and Ilayperuma formulas were 76,7% and 70,7%. Based on these findings, it can be concluded that the Crandal and Ilayperuma’s formula can be used as an alternative in determining the estimation of weight and height of adults in Indonesia, even with moderate diagnostic power.
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