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Blum, Robin E.; Wei, Esther K.; Rockett, Helaine; Langeliers, Jean D.; Leppert, Jill; Gardner, Jane; Colditz, Graham A.

doi:10.1023/a:1022350023163

Cited by 134 publications

(62 citation statements)

References 6 publications

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“…The correlation coefficients for most of the nutrients and foods groups were comparable with those observed in other validation studies of FFQ in children and young populations [10, 11, 31–36]. In our study, reproducibility was assessed by comparing the results from the FFQ administered twice over a period of 9 months, while validity was examined by comparing the nutrient and food intakes from FFQ with the intakes from three 24hDR and several nutrient intakes in plasma (carotenoids, vitamins C, E and retinol).…”

Section: Discussionsupporting

confidence: 85%

“…Nonetheless, the number of validity studies of FFQs to assess food and nutrient intakes in young children is much lower, probably as a result of the many dietary changes at these ages due to the rapid development and growth of the child [4]. In a systematic review of thirty-two articles by Ortiz-Andrellucchi on dietary assessment methods for micronutrient intake in infants, children and adolescent, eight studies presented validation data for FFQ in preschool children aged 2–5 years [8], although only two studies showed that past dietary intake of preschool children could be measured reasonably well when comparing their results with food records or dietary recalls [9, 10]. Only one study showed a good correlation for vitamin C and weak or no correlation for other micronutrients (vitamin D, retinol and b-carotene), when dietary intakes from FFQ were compared with plasma concentrations [11].…”

Section: Introductionmentioning

confidence: 99%

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Reproducibility and Validity of a Food Frequency Questionnaire Designed to Assess Diet in Children Aged 4-5 Years

et al. 2016

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BackgroundThe food frequency questionnaire (FFQ) is the most efficient and cost-effective method to investigate the relationship between usual diet and disease in epidemiologic studies. Although FFQs have been validated in many adult populations worldwide, the number of valid FFQ in preschool children is very scarce. The aim of this study was to evaluate the reproducibility and validity of a semi-quantitative FFQ designed for children aged 4 to 5 years.Materials and methodsIn this study, we have included 169 children aged 4–5 years from the INMA project in Valencia, a population-based prospective cohort study of mothers and children in Spain. The 105-items FFQ was administered twice to the parents or care-givers of children over a 9-month period. Reproducibility was explored by comparing intake of nutrients by the FFQs, while validity was examined by comparing the nutrient values from the FFQs with the average nutrient values of three 24 hour dietary recall (24hDR) taken in the period, and also, with the concentration in blood specimens for several vitamins (carotenoids, folate, vitamin B12, vitamin C and α-tocopherol). Pearson correlation coefficients and de-attenuated correlation coefficients were calculated and we also evaluated misclassification by quintile distribution.ResultsAll correlation coefficients for reproducibility for nutrients and major food groups were statistically significant; the average correlation coefficients for daily intake were 0.43 for food groups and 0.41 for nutrients. The average correlation coefficients for validity for daily intakes against 24hDR was r = 0.30, and the average for de-attenuated correlation coefficients was r = 0.44. When evaluating validity against the blood concentration of vitamins, statistically significant correlations were observed for vitamin C (0.35), lycopene (0.31), β-Cryptoxantin (0.40), and vitamin E (0.29); the average of correlation coefficients was r = 0.21.ConclusionDespite some low to moderate correlations for reproducibility and validity, overall this study suggests that the FFQ may be a good method for assessing a wide range of food groups and nutrients intake in children aged 4–5 years.

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Section: Discussionsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Reproducibility and Validity of a Food Frequency Questionnaire Designed to Assess Diet in Children Aged 4-5 Years

et al. 2016

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“…Parent and child sugary beverage intake was assessed using questions from food frequency questionnaires previously validated in a pediatric populating (Native American and Caucasian children ages 1–5 years) [38, 39]. Average daily sleep for both parent and child was measured by self-reported sleep and wake times (assessed separately for weekdays and weekends).…”

Section: Methods: Feasibility Trial Of Parents Working Together (Pwt)mentioning

confidence: 99%

Parents Working Together: development and feasibility trial of a workplace-based program for parents that incorporates general parenting and health behaviour messages

Wilson

Lero

Smofsky³

et al. 2016

BMC Public Health

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BackgroundParenting programs integrating general parenting and health behaviour messaging may be an effective childhood obesity prevention strategy. The current study explored workplaces as an alternate setting to deliver parenting programs.MethodsThis study involved two phases. The objective of the first phase was to explore interest in and preferred delivery mode of a workplace program that addresses general parenting and health behaviours. The objective of the second phase was to adapt and test the feasibility and acceptability of a pre-existing program that has been successfully run in community settings for parents in their workplace. To achieve the first objective, we conducted 9 individual or small group qualitative interviews with 11 workplace representatives involved in employee wellness/wellness programming from 8 different organizations across Southwestern Ontario. To achieve the second objective, we adapted a pre-existing program incorporating workplace representatives’ suggestions to create Parents Working Together (PWT). We then tested the program using a pre/post uncontrolled feasibility trial with 9 employees of a large manufacturing company located in Guelph, Ontario.ResultsResults from the qualitative phase showed that a workplace parenting program that addresses general parenting and health behaviour messages is of interest to workplaces. Results from the feasibility trial suggest that PWT is feasible and well received by participants; attendance rates were high with 89 % of the participants attending 5 or more sessions and 44 % attending all 7 sessions offered. All participants stated they would recommend the program to co-workers. Just over half of our parent participants were male (55.6 %), which is a unique finding as the majority of existing parenting programs engage primarily mothers. Impact evaluation results suggest that changes in children’s and parents’ weight-related behaviours, as well as parents’ reports of family interfering with work were in the desired direction post-intervention; however, confidence intervals substantially overlapped zero. Contrary to expectations, parents also reported an increase in restrictive feeding practices.ConclusionOur results indicate that a workplace-based program that addresses general parenting skills and weight-related behaviours may be a feasible way to engage and educate parents, including fathers. A full-scale trial is needed to examine the effectiveness of this approach.Electronic supplementary materialThe online version of this article (doi:10.1186/s12889-016-3817-z) contains supplementary material, which is available to authorized users.

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“…Maternal education status was reported as high school, some college, and college or more. Dietary data was obtained from a validated food-frequency questionnaire administered at each visit that asked about consumption of various food items in the past 30 days [37]. Screen time was calculated from the reported number of hours spent watching television, playing video games, or using a computer on an average school day.…”

Section: Methodsmentioning

confidence: 99%

Prevalence and correlates of 25-hydroxyvitamin D deficiency in the Chronic Kidney Disease in Children (CKiD) cohort

et al. 2015

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Background Vitamin D plays an important role in the mineral and bone disorder seen in chronic kidney disease (CKD). Deficiency of 25-hydroxyvitamin D (25OHD) is highly prevalent in the adult CKD population. Methods The prevalence and determinants of 25OHD deficiency (defined as a level <20 ng/ml) were examined longitudinally in 506 children in the CKiD cohort. Predictors of secondary hyperparathyroidism and the determinants of 1,25-dihydroxyvitamin D (1,25(OH)2D) levels were also evaluated. Results Deficiency of 25OHD was observed in 28 % of the cohort at enrollment. Significant predictors of 25OHD deficiency were older age, non-white race, higher body mass index, assessment during winter, less often than daily milk intake, non-use of nutritional vitamin D supplement and proteinuria. Lower values of glomerular filtration rate (GFR), serum 25OHD, calcium and higher levels of FGF23 were significant determinants of secondary hyperparathyroidism. Lower GFR, low serum 25OHD, nephrotic-range proteinuria, and high FGF23 levels were significant determinants of serum 1, 25(OH)2 D levels. Conclusions Deficiency of 25OHD is prevalent in children with CKD and is associated with potentially modifiable risk factors such as milk intake, nutritional vitamin D supplement use, and proteinuria. 25OHD deficiency is a risk factor for secondary hyperparathyroidism and decreased serum 1, 25(OH)2D in children with CKD.

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Cited by 134 publications

References 6 publications

Reproducibility and Validity of a Food Frequency Questionnaire Designed to Assess Diet in Children Aged 4-5 Years

Reproducibility and Validity of a Food Frequency Questionnaire Designed to Assess Diet in Children Aged 4-5 Years

Parents Working Together: development and feasibility trial of a workplace-based program for parents that incorporates general parenting and health behaviour messages

Prevalence and correlates of 25-hydroxyvitamin D deficiency in the Chronic Kidney Disease in Children (CKiD) cohort

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