Haraldsdóttir Jóhanna, Thórsdóttir Inga, de Almeida Maria Daniel Vaz, Maes Lea, Pérez Rodrigo Carmen, Elmadfa Ibrahim, Frost Andersen Lene
Department of Human Nutrition, Royal Veterinary and Agricultural University, Copenhagen, Denmark.
Ann Nutr Metab. 2005 Jul-Aug;49(4):221-7. doi: 10.1159/000087276. Epub 2005 Jul 28.
BACKGROUND/AIMS: Validity and reproducibility were evaluated of a new questionnaire to assess fruit and vegetable intakes in 11- to 12-year-old children.
The precoded teacher-assisted self-administered questionnaire included two sections: a 24-hour recall part and a food frequency part. Validity was tested in 4 countries (Denmark, Iceland, Norway, Portugal; n = 43-60 per country) using a 1-day weighed food record and 7-day food records as reference methods. Test-retest (7-12 days apart) reproducibility was assessed in 6 countries (Belgium, Denmark, Iceland, Norway, Portugal, Spain; n = 60-74 per country).
Spearman rank correlations for fruit and vegetable intake according to the frequency part and the 7-day food record ranged between r = 0.40-0.53. Between 25-50% were classified into the same quartile and 70-88% into the same or adjacent quartile. Test-retest Spearman rank correlations for the food frequency part were r = 0.47-0.84. Three countries showed no significant difference between fruit intake as assessed with the 24-hour recall part and the 1-day weighed food record, and 2 countries showed no significant difference for vegetables. In the other countries, the 24-hour recall part resulted in substantially higher mean intake levels.
Validity and reproducibility as to ranking of subjects were regarded to be satisfactory in all countries. Group mean intake, based on the original 24-hour part, was valid for fruit in 3 countries and for vegetables in 2 countries, and this part was subsequently adjusted to avoid overestimation, before the questionnaire was used in the Pro Children study.
背景/目的：对一份用于评估11至12岁儿童水果和蔬菜摄入量的新问卷的有效性和可重复性进行了评估。
预先编码的教师辅助自填问卷包括两个部分：24小时回顾部分和食物频率部分。在4个国家（丹麦、冰岛、挪威、葡萄牙；每个国家n = 43 - 60）使用1天称重食物记录和7天食物记录作为参考方法对有效性进行了测试。在6个国家（比利时、丹麦、冰岛、挪威、葡萄牙、西班牙；每个国家n = 60 - 74）评估了重测（间隔7 - 12天）的可重复性。
根据食物频率部分和7天食物记录得出的水果和蔬菜摄入量的斯皮尔曼等级相关性在r = 0.40 - 0.53之间。25% - 50%被归入同一四分位数，70% - 88%被归入同一或相邻四分位数。食物频率部分的重测斯皮尔曼等级相关性为r = 0.47 - 0.84。3个国家在通过24小时回顾部分评估的水果摄入量与1天称重食物记录之间没有显著差异，2个国家在蔬菜方面没有显著差异。在其他国家，24小时回顾部分得出的平均摄入量水平显著更高。
在所有国家，关于受试者排名的有效性和可重复性被认为是令人满意的。基于原始24小时部分得出的组平均摄入量在3个国家对水果有效，在2个国家对蔬菜有效，并且在该问卷用于“支持儿童”研究之前，对这部分进行了调整以避免高估。
