Martin Andrew C, Pascoe Elaine M, Forbes David A
Eating Disorders Program, Princess Margaret Hospital for Children, Western Australia, Australia.
J Paediatr Child Health. 2009 Jan-Feb;45(1-2):53-7. doi: 10.1111/j.1440-1754.2008.01427.x.
Accurate assessment of nutritional status is a vital aspect of caring for individuals with anorexia nervosa (AN) and body mass index (BMI) is considered an appropriate and easy to use tool. Because of the intense fear of weight gain, some individuals may attempt to mislead the physician. Mid-upper arm circumference (MUAC) is a simple, objective method of assessing nutritional status. The setting is an eating disorders clinic in a tertiary paediatric hospital in Western Australia. The aim of this study is to evaluate how well MUAC correlates with BMI in adolescents with AN.
Prospective observational study to evaluate nutritional status in adolescents with AN.
Fifty-five adolescents aged 12-17 years with AN were assessed between January 1, 2004 and January 1, 2006. MUAC was highly correlated with BMI (r = 0.79, P < 0.001) and individuals with MUAC >or=20 cm rarely required hospitalisation (negative predictive value 93%).
MUAC reflects nutritional status as defined by BMI in adolescents with AN. Lack of consistency between longitudinal measurements of BMI and MUAC should be viewed suspiciously and prompt a more detailed nutritional assessment.
准确评估营养状况是照顾神经性厌食症（AN）患者的一个重要方面，体重指数（BMI）被认为是一种合适且易于使用的工具。由于对体重增加的极度恐惧，一些患者可能试图误导医生。上臂中部周长（MUAC）是一种评估营养状况的简单、客观的方法。研究地点是西澳大利亚一家三级儿科医院的饮食失调诊所。本研究的目的是评估在患有AN的青少年中MUAC与BMI的相关性如何。
采用前瞻性观察研究来评估患有AN的青少年的营养状况。
在2004年1月1日至2006年1月1日期间对55名年龄在12 - 17岁的患有AN的青少年进行了评估。MUAC与BMI高度相关（r = 0.79，P < 0.001），MUAC≥20 cm的患者很少需要住院治疗（阴性预测值为93%）。
MUAC反映了患有AN的青少年中由BMI定义的营养状况。BMI和MUAC纵向测量之间缺乏一致性应引起怀疑，并促使进行更详细的营养评估。
