Rockett H R, Breitenbach M, Frazier A L, Witschi J, Wolf A M, Field A E, Colditz G A
Channing Laboratory, Brigham & Women's Hospital, Boston, Massachusetts 02115, USA.
Prev Med. 1997 Nov-Dec;26(6):808-16. doi: 10.1006/pmed.1997.0200.
To address limited longitudinal nutrition data on children and adolescents, a self-administered food frequency questionnaire was designed for older children and adolescents. Initially, the Youth/Adolescent Questionnaire (YAQ) was developed and demonstrated to be reproducible. This study was conducted to evaluate its validity.
The form was administered twice to a sample of 261 youths (ages 9 to 18) at an approximate interval of 1 year (1993-1994), and three 24-hr dietary recalls were collected during this period. Pearson correlation coefficients were calculated on nutrient data.
Validity was first evaluated by comparing the average of the three 24-hr recalls to the average of the two YAQs. Similar mean nutrients were found by both methods. Correlation coefficients between the mean energy-adjusted nutrients computed by the two methods ranged from 0.21 for sodium to 0.58 for folate. After correction for within-person error, the average correlation coefficient was 0.54, similar to that found among adults.
A simple self-administered questionnaire completed by older children and adolescents can provide nutritional information about this age group.
为解决儿童和青少年纵向营养数据有限的问题，为大龄儿童和青少年设计了一份自填式食物频率问卷。最初，开发了青少年问卷（YAQ）并证明其具有可重复性。本研究旨在评估其有效性。
对261名青少年（9至18岁）样本进行了两次问卷调查，间隔约1年（1993 - 1994年），并在此期间收集了三次24小时饮食回忆。计算了营养数据的皮尔逊相关系数。
首先通过比较三次24小时回忆的平均值与两次YAQ的平均值来评估有效性。两种方法得出的平均营养素相似。两种方法计算的平均能量调整营养素之间的相关系数范围从钠的0.21到叶酸的0.58。在校正个体内误差后，平均相关系数为0.54，与成年人中的情况相似。
由大龄儿童和青少年完成的简单自填式问卷可以提供该年龄组的营养信息。
