Reproducibility, power and validity of visual analogue scares in assessment of appetite sensations in single test meal studies
Reproducibility, power and validity of visual analogue scares in assessment of appetite sensations in single test meal studies
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DOI：
10.1038/sj.ijo.0801083
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发表时间：
2000-01-01
影响因子：
4.9
通讯作者：
Astrup, A
中科院分区：
文献类型：
--
作者：
Flint, A;Raben, A;Astrup, A
目的：检验视觉模拟量表（VAS）测量食欲感觉的再现性和有效性，在测试前有无饮食标准化。设计：在两个不同的测试日，受试者在完全相同的条件下记录早餐前和餐后4.5小时内每30分钟的食欲感觉。受试者：55名健康男性（年龄25.6+/-0.6 y, BMI 22.6+/-0.3 kg/m）。测量方法：VAS用于记录饥饿感、饱腹感、饱腹感、预期食物消耗、对高脂肪、咸、甜或咸的食物的渴望以及食物的适口性。随后提供了一顿随意的午餐，并记录了能量摄入。通过禁食、平均4.5 h和峰/谷底值的重复性系数（CR）评估再现性。结果：与平均4.5 h值相比，禁食和峰/谷底值的cr（范围20-61 mm）更大。没有指标显示饮食标准化对茶叶有改善作用。采用配对设计，研究功率为0.8，在18名受试者中可以检测到禁食时10毫米的差异和平均4.5小时评分时5毫米的差异。当使用吃特定类型食物的欲望或不配对的设计时，由于相当大的变化，需要更多的受试者。胃口参数的4.5 h平均VAS与随后的能量摄入之间存在最佳的效度相关性(r=+/-0.50 - 0.53， P
OBJECTIVE: To examine reproducibility and validity of visual analogue scales (VAS) for measurement of appetite sensations, with and without a diet standardization prior to the test days.DESIGN: On two different Test days the subjects recorded their appetite sensations before breakfast and every 30 min during the 4.5 h postprandial period under exactly the same conditions.SUBJECTS: 55 healthy men (age 25.6+/-0.6 y, BMI 22.6+/-0.3 kg/m(2)).MEASUREMENTS: VAS were used to record hunger, satiety, fullness, prospective food consumption, desire to eat something fatty, salty, sweet or savoury, and palatability of the meals. Subsequently an ad libitum lunch was served and energy intake was recorded. Reproducibility was assessed by the coefficient of repeatability (CR) of fasting, mean 4.5 h and peak/nadir values.RESULTS: CRs (range 20-61 mm) were larger for fasting and peak/nadir values compared with mean 4.5 h values. No parameter seemed tea be improved by diet standardization. Using a paired design and a study power of 0.8, a difference of 10 mm on fasting and 5 mm on mean 4.5 h ratings can be detected with 18 subjects. When using desires to eat specific types of food or an unpaired design, more subjects ape needed due to considerable variation. The best correlations of validity were found between 4.5 h mean VAS of the appetite parameters and subsequent energy intake (r=+/-0.50 - 0.53, P