Musa Imad R, Omar Saeed M, AlEed Ashwaq, Al-Nafeesah Abdullah, Adam Ishag
Royal Commission Hospital at AL Jubail Industrial City, Al Jubail, Saudi Arabia.
Faculty of Medicine, Gadarif University, Gadarif, Sudan.
Front Nutr. 2023 Oct 6;10:1200077. doi: 10.3389/fnut.2023.1200077. eCollection 2023.
Mid-upper arm circumference (MUAC) is a potentially credible alternative method for body mass index (BMI) to assess nutritional status. We aimed to assess the correlation between MUAC and BMI- Z-score and to identify a reliable MUAC cut-off point to detect underweight (BMI- Z-score of < -2 standard deviation) Sudanese adolescents.
A cross-sectional study was conducted in eastern Sudan. After obtaining adolescents' age and sex, their weight, height, and MUAC were measured using the standard procedures. The MUAC (cm) cut-off corresponding to underweight was calculated using receiver operating characteristic (ROC) curve analysis.
In total, 390 adolescents were enrolled in the study and 205 (52.6%) of them were females. The median (interquartile range, IQR) age was 15.1 (14.0-16.3) years. The medians (IQR) of MUAC and BMI- Z-score were 22.0 (20.0-24.0) cm and - 0.62 (-1.5-0.3), respectively. MUAC was positively correlated with BMI Z-score in all participants ( = 0.534, < 0.001), in females ( = 0.715, < 0.001), and in males ( = 0.404, < 0.001). Of the 390 enrolled adolescents, 61(15.6%) were underweight. The MUAC cut-off for underweight was ≤21.2 cm in all participants (Youden's Index, YI = 0.50; sensitivity = 82.0%; specificity = 68.0%, AUROCC = 0.78), in females (YI = 0.66, sensitivity = 86.0%, specificity = 80.0%, AUROCC = 0.87), and in males (YI = 0.32, sensitivity = 80.0%, specificity = 52.0%, AUROCC = 0.69).
MUAC has good accuracy results and can be adopted for community-based screening of underweight adolescents.
上臂中部周长（MUAC）是一种评估营养状况的、可能可信的替代体重指数（BMI）的方法。我们旨在评估MUAC与BMI-Z评分之间的相关性，并确定一个可靠的MUAC切点，以检测体重不足（BMI-Z评分为<-2标准差）的苏丹青少年。
在苏丹东部进行了一项横断面研究。在获取青少年的年龄和性别后，使用标准程序测量他们的体重、身高和MUAC。使用受试者工作特征（ROC）曲线分析计算对应体重不足的MUAC（厘米）切点。
总共390名青少年参与了该研究，其中205名（52.6%）为女性。年龄中位数（四分位间距，IQR）为15.1（14.0-16.3）岁。MUAC和BMI-Z评分的中位数（IQR）分别为22.0（20.0-24.0）厘米和-0.62（-1.5-0.3）。在所有参与者中（r = 0.534, p < 0.001）、女性中（r = 0.715, p < 0.001）以及男性中（r = 0.404, p < 0.001），MUAC与BMI-Z评分呈正相关。在390名参与研究的青少年中,61名（15.6%）体重不足。所有参与者中体重不足的MUAC切点为≤21.2厘米（约登指数，YI = 0.50；灵敏度 = 82.0%；特异性 = 68.0%，曲线下面积 = 0.78）,女性中（YI = 0.66，灵敏度 = 8
