Adachi Misa, Watanabe Mariko, Yamaoka Kazue, Tango Toshiro
National Institute of Public Health.
Nihon Koshu Eisei Zasshi. 2010 Jun;57(6):475-85.
To assess the validity and reproducibility of a food frequency questionnaire with 82-food items (FFQW82) for nutrition education to modify eating habits.
The validity of nutrient intake assessed by FFQW82 was evaluated with seven-day diet records (7d-DR) as the gold standard, with questionnaire being administered twice with a one month interval to assess reproducibility. Twenty nine men (ages 42-63) and sixty women (ages 35-53) completed both surveys. Daily consumption of energy for 12 food groups and 9 nutrients was calculated from the FFQW82 and the 7d-DR with respect to breakfast, lunch, dinner, and whole-day meals. A Pearson correlation coefficient was obtained for each using log-transformed data.
The estimated energy intakes from FFQW82 were higher than those from 7d-DR for men and women (relative differences of the median were 7% and 15%, respectively). As for validity, Pearson correlation coefficients of total energy intakes were 0.61 for men and 0.47 for women. Those for breakfast and lunch ranged from 0.66 to 0.89, while those for dinner were 0.19 and 0.26 for men and women. The daily intakes of nine nutrients ranged from 0.28 (potassium) to 0.65 (carbohydrate) in men and from 0.39 (fat) to 0.59 (calcium) in women. Regarding reproducibility, Pearson correlation coefficients for whole-day total energy intake were 0.65 for men and 0.69 for women. Those for the other nutrients ranged from 0.46 (salt) to 0.70 (carbohydrate) in men and from 0.59 (fat) to 0.70 (salt) in women.
The results suggest that FFQW82 could be used as a tool to obtain information concerning unbalance energy intake with reference to individual meals and to understand appropriate intake of the various food groups for nutrition education of middle-aged men and women.
评估一份包含82种食物的食物频率问卷（FFQW82）在营养教育中用于改变饮食习惯的有效性和可重复性。
以七天饮食记录（7d-DR）作为金标准，评估FFQW82所评估的营养素摄入量的有效性，问卷分两次发放，间隔一个月以评估可重复性。29名男性（年龄42 - 63岁）和60名女性（年龄35 - 53岁）完成了两项调查。根据FFQW82和7d-DR计算早餐、午餐、晚餐及全天膳食中12个食物组和9种营养素的每日能量消耗量。对每个数据使用对数转换后的数据获得Pearson相关系数。
男性和女性通过FFQW82估算的能量摄入量高于通过7d-DR估算的能量摄入量（中位数相对差异分别为7%和15%）。关于有效性，男性总能量摄入量的Pearson相关系数为0.61，女性为0.47。早餐和午餐的相关系数范围为0.66至0.89，而男性和女性晚餐的相关系数分别为0.19和0.26。男性9种营养素的每日摄入量范围为0.28（钾）至0.65（碳水化合物），女性为0.39（脂肪）至0.59（钙）。关于可重复性，男性全天总能量摄入量的Pearson相关系数为0.65，女性为0.69。男性其他营养素的相关系数范围为0.46（盐）至0.70（碳水化合物），女性为0.59（脂肪）至0.70（盐）。
结果表明，FFQW82可作为一种工具，用于获取有关个体膳食能量摄入不平衡的信息，并了解中年男性和女性营养教育中各种食物组的适当摄入量。
