Development of Data-based Semi-quantitative Food Frequency Questionnaire for Dietary Studies in Middle-aged Japanese

Abstract

Background:We designed a data-based semi-quantitative food frequency questionnaire to clarify the relationship between food intake and lifestyle-related diseases among middle-aged Japanese. Methods: A total of 351 middle-aged individuals were recruited to a one-day weighed diet record survey in 1994. In all, 586 foods were consumed. Intakeof 31 nutrients including energy, protein, fat, carbohydrate, vitamins, minerals and dietary fiber by food was computed by multiplying the weight of food consumed by its nutrient content. First, 252 foods with up to 90 cumulative 0/0 contribution to nutrientintakewere selected. Of these, foods having apparently the same/similar nutrient content were combined into 206 foods by research dietitians. Next, 183 foods with up to 0.90 cumulative multiple regression coefficient and 90 cumulative % contribution were chosen. At this stage an additional food grouping was made. Results: Finally, 102 foods/recipes were included in the questionnaire: rice (2 items), bread and noodles (11), eggs, milkand dairyproducts (10), soybean, soybean products andotherbeans (7), meat including beef, pork and chicken (12), fish (5), other fish, shellfish and fish products (10), green-yellow vegetables (8), other vegetables and mushrooms (7), edible roots (2), seaweeds (3), seeds (2), fruits (8), beverages (7) and confectioneries (8). The frequencies were classified intoeight categories. Portion size was calculated for the respective foodslargelyfrom the one-day weighed diet record. Conclusions:The developed semi-quantitative food frequency questionnaire substantially coveredthe intakeof 31 nutrients andmaybecompetentto rankmiddle-aged Japanese efficiently.

Soy consumption reduces the risk of non‐small‐cell lung cancers with epidermal growth factor receptor mutations among Japanese

“…(22)(23)(24) Our questionnaire covers 47 single food items with frequencies in the eight categories of never or seldom, 1-3 times/month, 1-2 times/week, 3-4 times/week, 5-6 times/ week, once/day, twice/day, and three or more times/day. Values for the consumption of selected food groups (soybean, meat, fish, seafood other than fish, green-yellow vegetables, vegetables other than green-yellow vegetables, and fruits) were calculated as the sums of consumption of contributing single food items as estimated from the food frequency and portion size.…”

Relative Validity of a Short Food Frequency Questionnaire for Assessing Nutrient Intake versus Three-day Weighed Diet Records in Middle-aged Japanese

“…According to the regression analysis, selected nutrients were adopted as dependent parameters and foods/food groups consumed, intake frequency, portion size (in grams) from our database, 5,8 or typical/standard values from the literature, nutrient contents per 100 grams of foods/food groups listed in the respective composition tables or of the model recipes were assumed to be independent variables. [9][10][11][12][13] With the WDRs, we calculated mean daily intakes of selected nutrients by multiplying the consumption of foods/food groups (in grams) and nutrient contents per 100 grams of foods as listed in the composition tables or model recipes.…”

“…We earlier developed a data-based semi-quantitative food frequency questionnaire (SQFFQ) using multiple regression analysis (MRA) as well as contribution analysis on the basis of WDRs, 5 and conducted a calibration/validation and reproducibility study, as detailed elsewhere. 6,7 However, the SQFFQ was primarily designed for the JADE (Japanese Dietitians' Epidemiologic) Study.…”

hOGG1 Ser326Cys polymorphism and risk of lung cancer by histological type

“…Consumption of fruits and vegetables was determined using a semiquantitative food frequency questionnaire (SQFFQ), described in detail elsewhere. 22 Briefly, the SQFFQ consisted of 47 single food items with frequencies in eight frequency categories. We estimated average daily intake by multiplying the frequency of intake by the serving size of food (in grams).…”