Factors associated with mortality after proximal femoral fracture.

"Declarations Ethics approval and consent to participateThis study is based on data from the Medicare Physician Service Records Data Base. These records encompassed diagnoses and treatments rendered in medical offices, outpatient clinics, hospitals, emergency departments, skilled nursing home, and other healthcare facilities. They were compiled by the Centers for Medicare and Medicaid Services (CMS), and after de- identification were made available for researcher, known as the Limited Data Set (LDS). Since the CMS data is deidentified, IRB approval was waived by the ethic committee of the University Hospital Regensburg. This work was performed in accordance with the Declaration of Helsinki. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding Open Access funding enabled and organized by Projekt DEAL. None."