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. 2022 Jul 25:11:e61.
doi: 10.1017/jns.2022.57. eCollection 2022.

Low socioeconomic status predicts vitamin D status in a cross-section of Irish children

Helena Scully  1   2 , Eamon Laird  2 , Martin Healy  3 , Vivion Crowley  3 , James Bernard Walsh  1 , Kevin McCarroll  1
Affiliations

Low socioeconomic status predicts vitamin D status in a cross-section of Irish children

Helena Scully et al. J Nutr Sci. .

Abstract

Vitamin D is essential for bone and muscle health with adequate status in childhood crucial for normal skeletal development. We aimed to investigate vitamin D status in a convenience sample (n = 1226) of Irish children (aged 1-17 years) who had serum 25-hydroxyvitamin D (25(OH)D) tested by request of their GP at a Dublin Hospital between 2014 and 2020. We examined predictors including age, sex, season and socioeconomic status (SES). Vitamin D deficiency (<30 nmol/l) was prevalent affecting 23 % and was more common in disadvantaged areas (34 %) and in those aged >12 v. ≤12 years (24 % v. 16 %, P = 0⋅033). The greatest predictor was SES (disadvantaged v. affluent, OR 2⋅18, CI 1⋅34, 3⋅53, P = 0⋅002), followed by female sex (OR 1⋅57, CI 1⋅15, 2⋅14, P = 0⋅005) and winter season (October to February, OR 1⋅40, CI 1⋅07, 1⋅84, P = 0⋅015). A quarter of our sample of children were deficient, rising to one-third in those in disadvantaged areas. Females and those aged over 12 years had a higher prevalence of deficiency. Public health strategies to improve vitamin D status in Irish children, including systematic food fortification may need to be considered to address this issue.

Keywords: 25(OH)D; Childhood; Ireland; Socioeconomic status; Vitamin D; Vitamin D deficiency.

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Figures

Fig. 1.
Fig. 1.
Vitamin D status by sex. *Indicates significance (P < 0⋅05) analysed by χ2. Winter (October–February); Summer (March–September).
Fig. 2.
Fig. 2.
Vitamin D status by age. *Indicates significance (P < 0⋅05) analysed by χ2. Winter (October–February); Summer (March–September).
Fig. 3.
Fig. 3.
Vitamin D status by socioeconomic status.
See this image and copyright information in PMC

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