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Low vitamin D in patients with hip fracture is common. In the present study, 407 of 872 (47%) patients had serum calcidiol less than 50 nmol/L. Patients with low vitamin D had more delirium, more new hip fractures, and more medical readmissions, but not more orthopedic complications after 1 year. BACKGROUND We wanted to study the relation between vitamin D level and postoperative orthopedic and medical complications in patients with hip fracture. In addition, we investigated the effect of giving a single-dose cholecalciferol 100.000 IU. METHODS Data were taken from the local hip fracture register. Logistic regression analyses including vitamin D level and potentially confounding variables were performed for complications and readmissions. RESULTS A total of 407 (47%) of 872 included hip fractures had low vitamin D at baseline. A total of 155 (18%) developed delirium, and the risk was higher in vitamin D-deficient patients (odds ratio (OR) 1.48, 95% confidence interval (CI) 1.04 to 2.12; p = 0.03). A total of 261 (30%) were readmitted for non-hip-related conditions. Low vitamin D was associated with a higher risk of medical readmissions within 30 days (OR 1.64 (1.03 to 2.61); p = 0.036) and 12 weeks (OR 1.47 (95% CI 1.02 to 2.12); p = 0.039). There was a higher risk of a new hip fracture (OR 2.84 (95% CI 1.15 to 7.03) p = 0.024) in vitamin D-deficient patients. A total of 105 (12%) developed at least one orthopedic complication, with no correlation to baseline vitamin D. Among vitamin D-deficient patients, those receiving a single-dose of 100.000 IU cholecalciferol had fewer orthopedic complications (OR 0.32 (95% CI 0.11 to 0.97) p = 0.044) the first 30 days after surgery. CONCLUSIONS Low vitamin D at admission for hip fracture increased the risk of delirium, a new hip fracture, and medical readmissions, but not orthopedic complications. The role of vitamin D supplementation to prevent orthopedic complications requires further study.
F Ingstad, and
L B Solberg, and
L Nordsletten, and
P M Thorsby, and
I Hestnes, and
F Frihagen
November 2014,
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F Ingstad, and
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L Nordsletten, and
P M Thorsby, and
I Hestnes, and
F Frihagen
April 1996,
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F Ingstad, and
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L Nordsletten, and
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F Frihagen
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F Ingstad, and
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I Hestnes, and
F Frihagen
May 2004,
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F Ingstad, and
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I Hestnes, and
F Frihagen
February 2010,
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F Ingstad, and
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L Nordsletten, and
P M Thorsby, and
I Hestnes, and
F Frihagen
October 2017,
Orthopedics,
