Location dependent weather condition is a factor that induces delirium requiring hospitalization in elderly patients: retrospective, single-center cohort study
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Background
Several factors for delirium have already been examined. However, the effects of location and weather conditions have not been fully evaluated yet. The aim of this study is to determine the effects of these factors on delirium in older adult patients.
Methods
We evaluated the data of older adult patients with and without delirium in the acute state on hospitalization from January 2017 to December 2020 in Johmoh Hospital. We also subdivided the patients into those who came from their own homes (COH group, 24 males and 20 females with delirium; 131 males and 218 females without delirium) and those who came from other places (COP group, 14 males and 16 females with delirium; 171 males and 284 females without delirium).
Results
We found that the number of delirious patients is higher in the COH group than the COP group. We also found that decreases in temperature, sunlight time, and average atmospheric pressure, and an increase in humidity were significant factors that induce delirium in COH group.
Conclusion
The risk factor for delirium differs depending on the housing condition, and weather is one of the important factors that should be considered to prevent delirium especially in COH group.
