The purpose of this observational study is to understand the impact of polypharmacy on the prognosis of elderly patients with chronic diseases. The main research question it aims to address is: Does polypharmacy affect the prognosis of elderly patients with chronic diseases? Elderly patients with chronic diseases will be asked to complete online survey questions regarding their disease prognosis over a 2-year period.
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Assessing the current status of polypharmacy in elderly patients with chronic diseases in Shaanxi Province via cluster sampling questionnaire survey
Timeframe: Start from enrollment to the end of the study at 2 years.