Field A E, Colditz G A, Fox M K, Byers T, Serdula M, Bosch R J, Peterson K E
Department of Medicine, Brigham and Women's Hospital, Boston, Mass., USA.
Am J Public Health. 1998 Aug;88(8):1216-8. doi: 10.2105/ajph.88.8.1216.
This study compared fruit and vegetable assessments derived from 4 self-administered questionnaires.
Among 102 adolescents, servings of fruits and vegetables assessed by 4 questionnaires were compared with estimates from 24-hour recalls.
The prevalence of consuming 5 or more servings of fruits and vegetables a day was underestimated by the questionnaires. Questionnaires asking subjects to recall their diet over the previous year were more effective in ranking subjects (r's > or = .42) than those assessing previous-day diet (r's > or = .30).
Brief assessments of fruit and vegetable intake are more useful for ranking subjects than for estimating prevalence of consumption of 5 or more servings per day.
本研究比较了4份自行填写问卷对水果和蔬菜摄入量的评估结果。
在102名青少年中,将4份问卷评估的水果和蔬菜摄入量与24小时膳食回顾法得出的估计值进行比较。
问卷低估了每日食用5份或更多份水果和蔬菜的比例。要求受试者回忆前一年饮食情况的问卷在对受试者进行排名方面(相关系数r≥0.42)比评估前一天饮食情况的问卷(相关系数r≥0.30)更有效。
水果和蔬菜摄入量的简短评估在对受试者进行排名方面比估计每日食用5份或更多份的比例更有用。