Hypovitaminosis D in Orthopaedic Trauma: Which Guidelines Should Be Followed?

OBJECTIVE:To evaluate the risk factors for hypovitaminosis D and to determine the baseline vitamin D supplementation associated with normal vitamin D levels at presentation. DESIGN:Prospective observational study. SETTING:Level I trauma center. PATIENTS:This study included 259 adult patients undergoing operative treatment for orthopaedic trauma (OTA 11–15, 21–23, 31–34, 41–44, 61–62, 70C, 81–82, 87) between January 1, 2014, and December 31, 2014. INTERVENTION:Prospective, observational study. MAIN OUTCOMES:Association of hypovitaminosis D with patient characteristics, injury factors, and vitamin D supplementation. RESULTS:Univariate predictors of hypovitaminosis D included a lack of preinjury supplementation, non-white race, younger age, female sex, non-Medicare insurance, smoking, obesity, Charlson Comorbidity Index