Background: Daytime sleepiness and falls are frequent in geriatric in-hospital patients; however, the relationship between both events is not clear. To test the hypothesis that observed daytime sleepiness is associated with falls in geriatric in-hospital patients data collected from medical records of patients who were admitted to an acute geriatric department were retrospectively analyzed.
Methods: The data from the medical records of patients who were admitted to the geriatric department of the Alfried-Krupp-Hospital in Essen, Germany in the period from January 2018 to March 2020 were retrospectively analyzed. Personal data, data concerning the geriatric assessment, observed daytime sleepiness, and falls were recorded.
Results: From a total of 1485 patients who were consecutively admitted to hospital, the data of 1317 (87%) patients could be included for further analysis. During the hospital stay 146 (11%) patients fell at least once, 35 (3%) patients had more than 1 fall and 64 falls (44%) occurred while patients were standing (bipedal fall). Daytime sleepiness was observed in 73% of the patients with bipedal falls and in 65% patients with nonbipedal falls (p < 0.01). Falls correlated significantly with the history of a recent fall, the length of hospital stay, the Barthel index (BI) on admission, the mini mental state examination (MMSE), dementia and observed daytime sleepiness. No correlation was found between falls and age, multimorbidity, and the number of drugs used. Drugs related to falls were medications to treat Parkinson's disease, antidepressants and neuroleptics. In a multiple logistic regression analysis in-hospital falls were significantly and independently associated with a history of falls, length of in-hospital stay, dementia, and observed daytime sleepiness.
Conclusion: Observed daytime sleepiness is associated with in-hospital falls in geriatric patients. Prospective interventional studies are needed to confirm this relationship, and to quantify the impact of sleepiness on the risk of falling. Additionally, the impact of treatment for observed daytime sleepiness on the risk of falling should be assessed. The assessment of sleepiness should become a routine task in geriatrics.
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