Van Hoeyweghen R J, De Leeuw I H, Vandewoude M F
Department of Geriatrics, University of Antwerp-Uia, Belgium.
Am J Clin Nutr. 1992 Oct;56(4):611-5. doi: 10.1093/ajcn/56.4.611.
Nutritional assessment of elderly people is limited due to a lack of age-corrected standards. The objective of this study was to develop a new, more age-independent index for nutritional assessment by correcting the creatinine height index (CHI) for the age-induced changes in its variables. This might improve the differentiation between physiological reduction in muscle mass in elderly people and the changes induced by malnutrition. Seventy-four elderly and 100 young healthy volunteers were compared by anthropometric and biochemical-assessment variables. From the high correlation between total arm length and body length (r = 0.86; P less than 0.001) and the use of an alternative formula to calculate ideal body weight (IBW) from height and wrist circumference, a relatively age-independent estimate of IBW was determined. Creatinine arm index, as an adapted index of CHI, is proposed based on this age-independent IBW estimation and a specific creatinine coefficient for different age groups.
由于缺乏经过年龄校正的标准，对老年人的营养评估受到限制。本研究的目的是通过校正肌酐身高指数（CHI）中因年龄导致的变量变化，开发一种新的、更不受年龄影响的营养评估指数。这可能会改善老年人肌肉量生理性减少与营养不良所致变化之间的区分。通过人体测量和生化评估变量对74名老年人和100名年轻健康志愿者进行了比较。根据总臂长与身高之间的高度相关性（r = 0.86；P < 0.001）以及使用从身高和腕围计算理想体重（IBW）的替代公式，确定了相对不受年龄影响的IBW估计值。基于这种不受年龄影响的IBW估计以及不同年龄组的特定肌酐系数，提出了作为CHI适应指数的肌酐臂指数。
