The prehospitalization functional and cognitive status and the course of acute infectious disease in the elderly

A total of 105 elderly patients hospitalized for acute infectious disease were classified into prehospital demented and non demented groups and into dependent and independent groups. Demographic data, clinical and biological parameters and previous health problems were recorded. There was a significant difference between the two cognitive and functional groups in complications, length of stay, dehydration, confusion, albumin and hemoglobin. A logistic regression analysis taking into account the epidemiologic parameters, functional and cognitive status and the medical health problems has shown that only age, dementia and previous neurologic disease (mainly stroke) are independent risk factors for confusion and complications. Thus, the prehospitalization function, cognitive status and previous neurologic disease in elderly patients with acute infections may have a predictive and prognostic value.