Vitamin D insufficiency in patients with acute hip fractures of all ages and both sexes in a sunny climate
Abstract
OBJECTIVES: To determine the incidence of vitamin D deficiency in patients with hip fractures of all ages who live in the southwest United States.
DESIGN: Retrospective comparative study.
SETTING: Two level 2 trauma centers and 2 community hospitals in San Diego, CA.
PATIENTS/PARTICIPANTS: Four hundred forty-eight patients who sustained a hip fracture from December 2010 to December 2011 and a control group of 1091 patients who underwent elective primary total hip or knee surgery during the same time period.
MAIN OUTCOME MEASUREMENTS: Serum 25-hydroxyvitamin D (25(OH)D) levels.
RESULTS: The mean 25(OH)D level for both the Hip Fracture (26.38 ng/mL) and Total Joint (29.92 ng/mL) Groups showed vitamin D insufficiency, with the Hip Fracture Group having lower levels (P 0.05). Females in the Hip Fracture Group were more deficient or insufficient (67.3% vs. 54.3%, P < 0.05) than in the Total Joint Group.
CONCLUSIONS: The majority of patients aged 18 years or older of both sexes with hip fractures had vitamin D insufficiency and those aged 71 years or older had significantly lower 25(OH)D levels than a control group of total joint patients.
LEVEL OF EVIDENCE: Prognostic level III. See Instructions for Authors for a complete description of levels of evidence.
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 1,091 participants or records.
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