Self-Administered Diet History Questionnaire Developed for Health Education: A Relative Validation of The Test-Version by Comparison with 3-Day Diet Record in Women

Objective: To investigate the longitudinal relationship between the intake of dietary antioxidants and periodontal disease in community-dwelling older Japanese. Design: A retrospective cohort study, with a follow-up of 2 years (2003)(2004)(2005). Intakes of dietary antioxidants (vitamin C, vitamin E, a-carotene and b-carotene) were assessed with a validated FFQ. Participants were classified by tertile of antioxidant intake. Full-mouth periodontal status, measured as the clinical attachment level, was recorded at baseline and follow-up examinations. Periodontal disease progression was considered as loss of attachment of 3 mm or greater over the study period at the interproximal site for each tooth. Finally, the number of teeth with periodontal disease progression per person was calculated and was used as the outcome. Poisson regression analysis was conducted, with dietary antioxidants as the main exposure, to estimate their influence on the number of teeth with periodontal disease progression. Setting: Niigata City ( Japan). Subjects: Dentate individuals aged 75 years in 2003, for whom data were available, were included in the analyses (n 264). Results: A higher intake of dietary antioxidants was inversely associated with the number of teeth with periodontal disease progression, controlling for other variables. The multivariate-adjusted incidence rate ratios in the first, second and third tertiles were 1? 00, 0?76 (95 % CI 0?60, 0?97) and 0?72 (95 % CI 0?56, 0?93) for vitamin C; 1?00, 0?79 (95 % CI 0?62, 0?99) Conclusions:The study results suggest that higher intake of antioxidants may mitigate periodontal disease in community-dwelling older Japanese.

Section: Dietary Intake Assessmentmentioning

confidence: 99%

Dietary antioxidants and periodontal disease in community-based older Japanese: a 2-year follow-up study

Iwasaki

Moynihan

Manz

et al. 2012

“…Items and portion sizes were derived primarily from data in the National Nutrition Survey of Japan and several recipe books for Japanese dishes (27) . Information on dietary supplements, including Fe supplements, and data from open-ended questionnaire items were not used in the dietary intake calculation.…”

Section: Dietary Assessmentmentioning

confidence: 99%

Iron intake does not significantly correlate with iron deficiency among young Japanese women: a cross-sectional study

Asakura

Sasaki

Murakami

et al. 2009

Self Cite

Objectives: We evaluated the association of nutrient intake with Fe deficiency with regard to lifestyle factors and health condition in young Japanese women. Uniquely among developed countries, dietary habits render Japanese populations vulnerable to Fe deficiency, owing to their relatively low intake of Fe and high intake of Fe absorption inhibitors, such as green tea and soyabeans. Design: A cross-sectional study. Setting and subjects: The subjects were 1019 female Japanese dietetic students aged 18-25 years. Dietary habits during the preceding month were assessed using a previously validated, self-administered, diet history questionnaire. Blood analysis was performed to assess body Fe status. Subjects were categorized with Fe deficiency when their serum ferritin levels were ,12 ng/ml. Twenty-nine dietary variables, i.e. intakes of energy, sixteen nutrients including Fe and twelve food groups, were analysed using multivariate logistic regression models adjusted for possible confounders. Results: Of the subjects, 24?5 % were categorized with Fe deficiency. However, no dietary factors assessed were significantly associated with Fe deficiency. The risk of Fe deficiency was significantly lower in women with infrequent or no menstrual cycles than in those with regular cycles (OR 5 0?58; 95 % CI 0?34, 1?00) and significantly higher in women with heavy menstrual flow than in women with average flow, albeit that these were self-reported (OR 5 1?83; 95 % CI 1?35, 2?48). Conclusions: These results suggest that dietary habits, including Fe intake, do not significantly correlate with Fe deficiency among young Japanese women.

“…Dietary habits during the preceding month were assessed using a previously validated, self-administered, diet history questionnaire (DHQ) [13][14][15] . This is a 16-page structured questionnaire that consists of the following seven sections: general dietary behaviour; major cooking methods; consumption frequency and amount of six alcoholic beverages; consumption frequency and semiquantitative portion size of 122 selected food and non-alcoholic beverage items; dietary supplements; consumption frequency and semi-quantitative portion size of 19 cereals usually consumed as staple foods (rice, bread and noodles) and miso (fermented soybean paste) soup; and open-ended items for foods consumed regularly (once a week or more) but not appearing in the DHQ.…”

Section: Dietary Intakesmentioning

confidence: 99%

Monetary costs of dietary energy reported by young Japanese women: association with food and nutrient intake and body mass index

Murakami

Sasaki

Okubo

et al. 2007

Self Cite

Objective: Little is known about the relationship of monetary diet costs to dietary intake and obesity, particularly in non-Western populations. This study examined monetary cost of dietary energy in relation to diet quality and body mass index (BMI) among young Japanese women. Design: Dietary intake was assessed by a validated, self-administered, diet history questionnaire. Diet costs were estimated using retail food prices. Monetary cost of dietary energy (Japanese yen 1000 kcal 21 ) was then calculated. BMI was computed from self-reported body weight and height. Subjects: A total of 3931 female Japanese dietetic students aged 18-20 years. Results: Monetary cost of dietary energy was positively associated with intakes of fruits, vegetables, fish and shellfish, and pulses; however, higher monetary cost of dietary energy was also associated with higher consumption of fat and oil, meat and energy-containing beverages, and lower consumption of cereals (rice, bread and noodles) (all P for trend ,0.01). At the nutrient level, monetary cost of dietary energy was positively associated with intakes of dietary fibre and key vitamins and minerals, but also associated positively with intakes of fat, saturated fatty acids, cholesterol and sodium, and negatively with carbohydrate intake (all P for trend ,0.0001). After adjustment for possible confounders, monetary cost of dietary energy was quite weakly but significantly negatively associated with BMI (P for trend 5 0.0197). Conclusions: Increasing monetary cost of dietary energy was associated with both favourable and unfavourable dietary intake patterns and a quite small decrease in BMI in young Japanese women. Keywords Monetary cost Energy intake Energy density Nutrient intakeFood intake Diet quality Body mass index Japanese women EpidemiologyWhile food choice is influenced by a large number of factors 1 , the price of food is clearly an important determinant 2,3 . An inverse relationship exists between the energy density of foods (energy derived from foods per edible weight of foods) and energy cost (monetary cost of foods per energy derived from foods) 4 . Generally, energy-dense and nutrient-dilute foods such as cereals, fats and oils, and sugar and sweets provide dietary energy at the lowest cost. Conversely, the cost per calorie of energy-dilute and nutrient-dense foods including fish and shellfish, vegetables and fruit is much higher. If healthier foods cost more then so too will healthier diets, suggesting that consumers with limited financial resources might select energy-dense and nutrient-dilute diets as a means of saving money. Observational studies (albeit a limited number) on the cost of freely chosen diets have consistently shown that healthful diets are more expensive than less healthful diets 5-10 . To our knowledge, however, all studies of self-selected diets and monetary costs have been conducted in European countries, with none reported in Asian countries, including Japan.In contrast to Western populations, Japanese obtain the largest part of t...