title: Rapid assessment of dietary calcium intake.
abstract: A five-food item food frequency questionnaire (FFQ) and a 3-day food diary (3DFD) were used to estimate daily dietary calcium (Ca) intake in 32 patients aged 1-17 years. Median and IQR of Ca intake from 3DFD was 840 mg and 438 mg while from FFQ it was 700 mg and 987 mg, respectively. The non-parametrical Bland-Altman limits of agreement plot between two methods showed that most of the values fell between the limits of agreement at +794 mg and -388 mg. The FFQ had a specificity of 93% in identifying children who consumed inadequate amount of dietary Ca and a sensitivity of 78% in identifying children whose dietary Ca intake exceeded UK's Reference Nutrient Intake. Thus the FFQ allows rapid estimation of children with low daily dietary Ca intake in the clinic setting; however it does not replace 3DFD.
authors.affiliation: Faculty of Life Sciences, University of Manchester, Manchester, UK.
authors.forename: Mikaela
authors.initials: M
authors.lastname: Nordblad
authors.affiliation: Department of Paediatric Therapy and Dietetics, Royal Manchester Children's Hospital, Manchester, UK.
authors.forename: Fiona
authors.initials: F
authors.lastname: Graham
authors.affiliation: Faculty of Life Sciences, University of Manchester, Manchester, UK Department of Paediatric Endocrinology and Metabolic Bone Diseases, Royal Manchester Children's Hospital, Manchester, UK.
authors.forename: M Zulf
authors.initials: MZ
authors.lastname: Mughal
authors.affiliation: Faculty of Life Sciences, University of Manchester, Manchester, UK Department of Paediatric Endocrinology and Metabolic Bone Diseases, Royal Manchester Children's Hospital, Manchester, UK.
authors.forename: Raja
authors.initials: R
authors.lastname: Padidela
mesh_terms: D000293:Adolescent; D002136:Calcium, Dietary / Q000008:administration & dosage*; D002648:Child; D002664:Child Nutritional Physiological Phenomena; D002675:Child, Preschool; D015930:Diet Records; D005518:Food Preferences; D006801:Humans; D007223:Infant; D015596:Nutrition Assessment; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires
chemical_list: D002136:Calcium, Dietary
keywords: Nutrition; Screening