Test-retest reliability and comparison of children's reports with parents' reports of young children's fruit and vegetable preferences.

The aim of this study is to investigate the test-retest reliability of a short computerized assessment of young children's fruit (F) and vegetable (V) preferences, and to compare children's responses with their parents' responses. A paper-and-pencil F and V preference and F and V food frequency questionnaire was completed by 194 parents. Data on 139 preschoolers was available for test and retest of F preferences and data on 135 children for V. F and V preference scales were computed, including the ten most commonly consumed F and the ten most commonly consumed V. Alpha reliabilities were good (F = 0.78; V = 0.76) and test-retest intraclass correlations were high (ICC for F = 0.74; V = 0.75). Agreement between parents' and children's reports was moderate (F: ICC = 0.48, V: ICC = 0.41). Children reported more often to have never consumed an item, and less often the midcategory "not yummy, not yucky but ok". Covariance analysis indicated differences in agreement by school and mothers' education level with a lower agreement for those of lower social status. A weak, but significant association was found between children's reported preferences and children's consumption (F: r = 0.19, V: r = 0.25). The results are promising, but additional validation is needed in a representative sample and should further explore the sources of disagreements.

Feasibility of the Young Children's Nutrition Assessment on the Web.

Methods to assess detailed dietary data are cumbersome, expensive, and difficult to implement with large samples. The purpose of the present article was to evaluate the feasibility of collecting data from parents about their child's diet using an online dietary assessment tool. The Young Children's Nutrition Assessment on the Web was developed as part of a longitudinal study of familial influences on food intake of preschool children. A sample of 862 parents from 56 nursery schools completed a paper-and-pencil questionnaire containing sociodemographic variables and a food frequency questionnaire about their child's diet and psychosocial variables. Subsequently, a subset of parents was asked to either complete a paper-and-pencil food diary or the Young Children's Nutrition Assessment on the Web (n=88); those remaining who provided e-mail addresses were asked to complete the Young Children's Nutrition Assessment on the Web (n=467) and a user-acceptability questionnaire. This resulted in 39 useful paper-and-pencil diaries, 217 useful Young Children's Nutrition Assessments on the Web, and 164 user-acceptability questionnaires. Mann-Whitney U tests comparing nutrient (macronutrients, vitamin C, calcium, and fiber) and food group intakes from data collected with the Young Children's Nutrition Assessment on the Web vs paper-and-pencil diaries resulted in no substantial differences except for water. Attrition analyses indicated that dropout for the online assessment was associated with the sex of the respondent (father completing the questionnaire), lower social status, being a smoker, and lower nutrition knowledge. The online measure was well-received by respondents. The majority found it user-friendly (79%), attractive (68%), and clear (93%). The Young Children's Nutrition Assessment on the Web is a promising tool to collect online dietary data in large-scale surveys.

Comparison of a short food-frequency questionnaire and derived indices with a seven-day diet record in Belgian and Italian children.

OBJECTIVES: To compare food group intakes and dietary indices estimated from a 14-item food frequency questionnaire (FFQ) with a seven day diet record. METHODS: 112 Belgian and 114 Italian children (11-12 years) completed the FFQ followed by a seven-day diary (FD) and a retest one week later. Dietary indices were calculated from the FFQ and the FD. RESULTS: Spearman's correlations between the FFQ items and the diary varied between -0.13 and 0.67. When comparing the FFQ with the FD an overestimation was found for most items. The Excess Index was significantly correlated with energy intake (respectively 0.35 and 0.25 for Belgian and Italian children); the Variety Index with fiber intake (0.26 for both) and Calcium intake (respectively 0.32 and 0.41); the Fiber Index with fiber intake (respectively 0.30 and 0.37) and the Calcium Index with Calcium intake (respectively 0.47 and 0.50). CONCLUSION: When the FFQ is used for estimating consumption frequencies, overestimation must be considered. The ability to rank individuals varies considerably between food items. The Calcium index can be useful in situations requiring brief dietary instruments. The value of the other indices is lower although still associations in the expected directions were found.

Television viewing and food consumption in Flemish adolescents in Belgium.

OBJECTIVES: To examine associations of television viewing with overall food consumption METHODS: A computerised 24-hour dietary recall and a questionnaire were completed by 1031 adolescents (+/- 12-14 years of age). RESULTS: Those who generally watched more television were more likely to consume frequently advertised items such as soft drinks and snacks. Not all frequently advertised food items (e.g. cereals) were associated with television viewing. An inverse association was found with fruit, water and milk. A negative association was found with brown bread; a positive association was found with white bread. The results indicate that high television viewing and a less nutrient dense food pattern are part of a lifestyle influenced by common underlying factors. CONCLUSIONS: Nutrition interventions aimed at improving adolescents' food habits should target high television-viewers. Our findings underline the importance of tackling socio-demographic differences.

Measuring attitudes, self-efficacy, and social and environmental influences on fruit and vegetable consumption of 11- and 12-year-old children: reliability and validity.

This article examines the reliability and construct validity of questions assessing mediating factors of fruit and vegetable consumption among 11- and 12-year-old children (N=207). Internal consistencies were good for most scales, ranging from 0.56 to 0.94. Intraclass correlation coefficients between test and retest were acceptable, ranging from 0.39 to 0.90. Concerning predictive validity, preferences and perceived parental and peer behavior were significantly associated with fruit and vegetable consumption. Self-efficacy in difficult situations and a variety of available fruit were significantly correlated with fruit consumption, while permissive eating practices and obligation rules were significantly correlated with vegetable consumption. General attitudes, outcome expectations, selection efficacy, and encouraging practices were not associated with fruit or vegetable consumption.