Abstract
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.
Highlights
Nutritional screening is an important part of a person's nutritional identity
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 results showed that the sensitivity value of the Crandal and Ilayperuma’s formula were 78,2% and 63,4%
Summary
Nutritional screening is an important part of a person's nutritional identity. The accuracy and reliability of the instruments used in screening must ensure the suitability of the data obtained. There are many instruments used in nutritional screening which consist of the main principles of assessing the actual condition (including body weight, height, and body mass index), 5% weight loss within 3 months, decreased food intake, and changes. Body weight and height are included in the anthropometric measurement parameters which are very important in determining nutritional status [7]. Research problem was formulated to see how accurate the Crandal and Ilayperuma’s formulas in predicting height and weight of adults in Pekanbaru. Based on this phenomenon, this research aims to analyzing how sensitive and specific the Crandal and Ilayperuma formulas were for Indonesia, especially in Pekanbaru
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