Tomita Luciana Yuki, Cardoso Marly Augusto
Núcleo de Investigação em Nutrição, Instituto de Saúde, Secretaria de Estado da Saúde de São Paulo, São Paulo, SP 01314-000, Brasil.
Cad Saude Publica. 2002 Nov-Dec;18(6):1747-56. doi: 10.1590/s0102-311x2002000600029.
This study examined both the food list and portion size values from a Food Frequency Questionnaire (FFQ) among participants in a case-control study in São Paulo, Brazil. Two hundred adult respondents to a case-control study were randomly selected (101 men and 99 women; age range: 35-69 years). FFQ food items were examined on the basis of their contribution to total population nutrient intake estimated by 24-hour dietary recall (1-DR). We examined the frequency distribution of equivalent-gram weights of each selected food from the 1-DR and identified the portion sizes as small, medium, and large in the distribution (percentiles 25, 50, and 75, respectively). The FFQ provided close estimation of total fat, saturated fatty acids, cholesterol, total fiber, vitamin B6, and folic acid compared to the 1-DR (paired t-test; p < 0.05). The FFQ food list covered the study population's main dietary nutrient sources.
本研究对巴西圣保罗一项病例对照研究的参与者所填写的食物频率问卷（FFQ）中的食物清单和份量值进行了评估。从一项病例对照研究中随机选取了200名成年受访者（101名男性和99名女性；年龄范围：35 - 69岁）。根据通过24小时膳食回顾（1-DR）估算的总体人群营养素摄入量，对FFQ中的食物项目进行了评估。我们研究了1-DR中每种选定食物的等量克重的频率分布，并将分布中的份量大小确定为小、中、大（分别为第25、50和75百分位数）。与1-DR相比，FFQ对总脂肪、饱和脂肪酸、胆固醇、总纤维、维生素B6和叶酸的估算较为接近（配对t检验；p < 0.05）。FFQ食物清单涵盖了研究人群的主要膳食营养来源。
