Retrospective study of patterns of vitamin D testing and status at a single institution paediatric orthopaedics and sports clinics

Objective(s)There has been a recent increase in awareness of the importance of bone health in children treated by paediatric orthopaedic and sports medicine providers. The purpose of this study was to assess our utilisation of 25 hydroxy vitamin D (25(OH)Vit D) testing in the past 10 years, and to evaluate the level of 25(OH)Vit D sufficiency in various populations of patients seen.DesignThis is a single site, retrospective medical record review study.SettingThe study took place at a single large, private, paediatric level 1 trauma teaching hospital in the Northeast USA.ParticipantsOur internal medical records query system identified all patients who have had 25(OH)Vit D testing in the past 10 years, from 1 January 2009 to 31 December 2018. All patients included were seen on an outpatient basis at our Orthopaedic clinics.InterventionsNo interventions for strict research, however, eligible patients have had 25(OH)Vit D testing during their standard of care treatment.Main outcome measure(s)The varying number of 25(OH)Vit D testing that occurred over the study time period within Orthopaedic groups, and by Vit D levels as sufficient, insufficient and deficient. 25(OH)Vit D sufficiency was ≥30 ng/mL, insufficiency