title: Validity of the 24-hour recall method in infancy: the Leiden Pre-School Children Study.
abstract: In the Leiden Pre-School Children Study the 24-hour recall method was used to determine the energy and nutrient intake of children from four to 28 months. A validation study was carried out in order to get insight into the validity of the collected dietary data. In the first part of the study the validity of the Dutch food table, supplemented with data on commercial babyfoods, was tested. The calculated average energy and nutrient intake of 111 six-month-old non-breastfed infants was compared with the results of chemical analysis of an equivalent composite corresponding with the average food intake of these children. With the exception of calcium and phosphorus the difference between the calculated and analysed values was less than 5%. Secondly the 24-hour recall was validated against the duplicate portion technique among 41 six-month-old non-breastfed infants. With the exception of sodium and iron, energy and nutrient intake data calculated from the 24-hour recall were significantly higher than those obtained after chemical analysis of the duplicate portions. However, on a relative level the results of the 24-hour recall and the duplicate portion technique corresponded very well. These results suggest that for infants a systematic difference exists between both methods.
authors.affiliation: Institute of Social Medicine, University of Leiden, the Netherlands.
authors.forename: C H
authors.initials: CH
authors.lastname: Horst
authors.forename: G L
authors.initials: GL
authors.lastname: Obermann-De Boer
authors.forename: D
authors.initials: D
authors.lastname: Kromhout
mesh_terms: D002675:Child, Preschool; D004034:Diet Surveys; D002149:Energy Intake; D005069:Evaluation Studies as Topic; D006801:Humans; D007223:Infant; D007225:Infant Food / Q000032:analysis; D007227:Infant Nutritional Physiological Phenomena; D011939:Mental Recall; D008722:Methods; D009426:Netherlands; D009749:Nutrition Surveys; D013997:Time Factors