Abstract
This study aimed to establish a cutoff point for detecting malnutrition for mid-upper arm circumference in the supine position. Data were collected from patients (n = 207) by medical records and anthropometric measurements. The cutoff point of the mid-upper arm circumference was obtained from the receiver operating characteristic curve and the highest Youden index. It was found that there is an agreement between mid-upper arm circumference in the standing and supine positions. The mid-upper arm circumference has a strong and significant correlation to body mass index. The mid-upper arm circumference of less than 23.4 cm can be used as an alternative measurement to body mass index for detecting malnutrition.