Validation of Energy and Nutrition Intake in Japanese Elderly Individuals Estimated Based on a Short Food Frequency Questionnaire Compared against a 7-day Dietary Record: The Kyoto-Kameoka Study

Abstract

To determine the association between geriatric disorders and dietary intake, validation of a food frequency questionnaire (FFQ) for elderly individuals is needed. We compared energy and nutrient intakes derived from dietary records (DR) and FFQ in an elderly population and compared the data against results from middle-aged individuals (30–68 years) from a previous study. Current participants included 65 women and 78 men (65–88 years) who completed FFQ and 7-day DR in a subpopulation of the Kyoto-Kameoka study. Our FFQ was created for middle-aged individuals. To validate the FFQ, we investigated equivalent precision by comparing the correlation coefficients between the present and previous study. Median correlations for energy and nutrient intake between the DR and FFQ in the current and previous studies were 0.24 and 0.30 (p = 0.329) in women and 0.24 and 0.28 (p = 0.399) in men, respectively. The median ratio of FFQ to DR for these intakes were also similar. The accuracy and precision of the FFQ for energy and nutrient intake in elderly individuals did not differ compared with previous findings in a middle-aged population. A validation study evaluating energy and nutrient intake using recovery biomarkers is further needed.

Objectively Measured Daily Step Counts and Prevalence of Frailty in 3,616 Older Adults

“…We evaluated the accuracy and precision of accelerometer daily step counts by using previously reported equations to assess the accuracy and precision of exposure variable estimation from between-person variance, within-person variance, and ratio of within-person to between-person variance. 21 These analyses were performed after stratification by age (≥75 or <75 years) and sex. 21 The prevalence of frailty in each quartile for daily step counts is presented as the number of cases and as a percentage.…”

“…21 These analyses were performed after stratification by age (≥75 or <75 years) and sex. 21 The prevalence of frailty in each quartile for daily step counts is presented as the number of cases and as a percentage. We used multivariate logistic regression including baseline covariates to adjust for confounders in the association between daily step counts and prevalence of frailty.…”

“…Details of this study are provided elsewhere. [20][21][22][23][24] In brief, these participants were assessed via the Health and Nutrition Status Survey (additional survey) on February 14, 2012, and responses were obtained from 8,370 participants. Among them, we excluded residents of areas assigned to a comprehensive geriatric intervention program by a cluster randomized controlled trial (RCT) of the Kyoto-Kameoka study (n = 524) 23 and persons whose identity could not be ascertained (n = 30).…”

Validity and reliability of a simplified food frequency questionnaire: A cross sectional study among physical health examination adults in southwest region of China

“…It would take about 30 minutes to nish a survey, but a lengthy questionnaire is less likely to be completed and returned 23 . The enduring participation rates of respondent effects the validation of the questionnaires 24 , as longer questionnaires may cause respondent fatigue and poorer quality of gathered information. So, this might be not suitable for promotion to adults undergoing physical examination.…”

Validity and reliability of a simplified food frequency questionnaire: A cross sectional study among physical health examination adults in southwest region of China

“…It would take about 30 minutes to nish one survey, but a lengthy questionnaire is less likely to be completed and returned 23 . The enduring participation rates of respondent effects the validation of the questionnaires 24 , as longer questionnaires may cause respondent fatigue and poorer quality of gathered information. So, this might be not suitable for promotion in the physical examination of adults.…”