Background and objectives: Alcohol consumption has a relatively large impact on energy intake in drinkers, and several studies reported different dietary habits from non-drinkers. However, few studies have investigated the influence of alcohol consumption on the validity of the Food Frequency Questionnaire (FFQ). To investigate its influence, we conducted a validity test in a population with high alcohol consumption.
Methods and study design: The study subjects were 66 residents living on an island in the south-western part of Japan. We conducted the FFQ and 12-day-weighed dietary records (12d-WDRs) in each 3 day of each 4 season. We calculated Pearson correlation coefficients (CCs) and agreement rates according to quartile classification after adjusting for energy.
Results: The intake energy (kcal) estimated from 12d-WDRs and FFQ was 1,641 and 1,534 in women, and 2,093 and 1,979 in men, respectively. The cumulative percentage contribution of the alcohol energy was 6.7% in men. De-attenuated, log-transformed Pearson's median CCs between the nutrients quantified with the 12d-WDRs and FFQ were 0.51 in women and 0.38 in men. The CCs for carbohydrate and saturated fatty acids intake of men were lower than those in the previous Tokai study using the same FFQ. The findings in agreement rates were consistent with the Tokai study.
Conclusion: This study suggested that the FFQ can be used for epidemiological studies using categorical comparisons in this population, although the underestimation of carbohydrates and other nutrients in the FFQ should be taken into consideration.
背景与目的：酒精消费对饮酒者的能量吸收有相对较大的影响，一些研究报告 了非饮酒人群不同的饮食习惯。然而，很少有研究调查酒精消费对食物频率问 卷（FFQ）有效性的影响。为了研究它的影响，我们对高酒精消费人群进行了 有效性测试。方法与研究设计：研究对象为居住在日本西南部的一个岛屿上的 66 名居民。我们进行了FFQ 和12 天称重饮食记录（12d-WDRS），4 个季 节，每个季节3 天。我们根据四分位数分类校正能量后计算了Pearson 相关系 数（CCS）和一致率。结果：根据12d-WDRS 和FFQ 估计摄入的能量（千 卡）女性为1641 和1534，男性为2093 和1979 人。男性酒精能量的累积贡献 率为6.7%。12d-WDRS 和FFQ 之间营养素量化后对数变换Pearson 中位CCS 在女性为0.51，男性为0.38。男性碳水化合物和饱和脂肪酸摄入量之间的CCS 低于之前在东海使用相同FFQ 进行的研究，但一致率的结果与东海的研究一 致。结论：尽管我们应该考虑到FFQ 会低估碳水化合物和其他营养素，但 FFQ 可用于日本高酒精消费这一群体分类比较的流行病学研究。.