Background.The influence of psychiatric comorbidity on outcomes following inpatient management of upper extremity fractures\nis poorly understood. Methods.The National Hospital Discharge Survey was queried to identify patients admitted to US hospitals\nwith distal humerus fractures between 1990 and 2007. Patients were subdivided into 5 groups: depression, anxiety, schizophrenia,\ndementia, and no psychiatric comorbidity.Multivariable logistic regression analysis identified independent risk factors for adverse\nevents, requirement of blood transfusion, and discharge to another inpatient facility. Results. A cohort representative of 526,185\npatients was identified as having a distal humerus fracture. Depression, anxiety, and dementia were independently associated with\nhigher odds of in-hospital adverse events (
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