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Predictors of vitamin D status in New Zealand preschool children.
- Source :
-
Maternal & Child Nutrition . Jul2017, Vol. 13 Issue 3, pn/a-N.PAG. 1p. - Publication Year :
- 2017
-
Abstract
- Vitamin D deficiency has adverse health effects in young children. Our aims were to determine predictors of vitamin D status and then to use these factors to develop a practical tool to predict low 25(OH)D concentrations in preschool New Zealand children. A cross-sectional sample of 1329 children aged 2 to <5 years were enrolled from throughout New Zealand in late-winter to spring 2012. 25-Hydroxyvitamin D (25(OH)D) was measured on dried blood spot (DBS) samples collected using finger-prick sampling. Caregivers completed a questionnaire. Mean (SD) DBS 25(OH)D concentration was 52(19)nmol/L. 25(OH)D < 25 nmol/L was present in 86(7%), 25(OH)D < 50 nmol/L in 642(48%), 25(OH)D 50- < 75 nmol/L in 541(41%) and 25(OH)D > 75 nmol/L in 146(11%) of children. Factors independently associated with the risk of 25(OH)D < 25 nmol/L were female gender (OR 1.92,95%CI 1.17-3.14), other non-European ethnicities (not including Māori or Pacific) (3.51,1.89-6.50), had olive-dark skin colour (4.52,2.22-9.16), did not take vitamin D supplements (2.56,1.06-6.18), had mothers with less than secondary-school qualifications (5.00,2.44-10.21) and lived in more deprived households (1.27,1.06-1.53). Children who drank toddler milk (vitamin D fortified cow's milk formula marketed to young children) had a zero risk of 25(OH)D < 25 nmol/L. The predictive tool identified children at risk of 25(OH)D < 25 nmol/L with sensitivity 42%, specificity 97% and ROC area-under-curve 0.76(95%CI 0.67-0.86, p < 0.001). Predictors of low vitamin D status were consistent with those identified in previous studies of New Zealand children. The tool had insufficient predictive ability for use in clinical situations, and suggests a need to promote safe, inexpensive testing to determine vitamin D status in preschool children. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ANALYSIS of variance
*CAREGIVERS
*HUMAN skin color
*CONFIDENCE intervals
*DIETARY supplements
*ETHNIC groups
*FORECASTING
*MILK
*MOTHERS
*MULTIVARIATE analysis
*POVERTY
*PROBABILITY theory
*QUESTIONNAIRES
*RESEARCH funding
*SEX distribution
*STATISTICAL hypothesis testing
*STATISTICS
*T-test (Statistics)
*VITAMIN D
*VITAMIN D deficiency
*LOGISTIC regression analysis
*STATISTICAL power analysis
*DATA analysis
*SOCIOECONOMIC factors
*EDUCATIONAL attainment
*PREDICTIVE tests
*CROSS-sectional method
*RECEIVER operating characteristic curves
*DATA analysis software
*DESCRIPTIVE statistics
*NUTRITIONAL status
*ODDS ratio
*CHILDREN
Subjects
Details
- Language :
- English
- ISSN :
- 17408695
- Volume :
- 13
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Maternal & Child Nutrition
- Publication Type :
- Academic Journal
- Accession number :
- 123838120
- Full Text :
- https://doi.org/10.1111/mcn.12340