Lower Incidence of In-Hospital Falls in Patients Hospitalized in Window Beds Than Nonwindow Beds

• Published in: Journal of the American Medical Directors Association Vol. 21; no. 4; p. 476
• Main Authors: Iwamoto, Junko, Saeki, Keigo, Kobayashi, Miwa, Yamagami, Yuki, Yoshida, Osamu, Kurumatani, Norio, Obayashi, Kenji
• Format: Journal Article
• Language: English
• Published: United States 01.04.2020
• Subjects: Aged; Hospitals; Humans; Incidence; Japan - epidemiology; Prospective Studies; Retrospective Studies; Risk Factors; Japan; light exposure; window; daytime; In-hospital fall; circadian rhythm
• ISSN: 1538-9375
• DOI: 10.1016/j.jamda.2019.07.006

Comparing the incidence rate of in-hospital falls between patients hospitalized in window beds and nonwindow beds. Retrospective cohort study. A general hospital in Mie, Japan. A total of 2767 patients (mean age, 68.4 years) hospitalized in four-bedded rooms between January 2014 and December 2016. We identified patients' bed status (window/nonwindow) and the incidence of in-hospital falls using data on medical records and incidence reports, respectively. During an observation period of 25,450 person-days, 57 patients had in-hospital falls (incidence rate, 2.24/1000 person-days). Incidence rate for in-hospital falls was significantly lower in the window-bed group (n = 1273) than in the nonwindow-bed group (n = 1494) [incidence rate ratio (IRR) 0.49, 95% confidence interval (CI), 0.29, 0.84]. In the multivariable analysis adjusted for age, gender, BMI, smoking and drinking habit, surgical operation during hospitalization, and independence in daily living, the window-bed group exhibited significantly lower incidence rate for in-hospital falls than the nonwindow-bed group (IRR 0.54, 95% CI 0.32, 0.93). Sensitivity analysis excluding patients aged <60 years suggested a consistent result: incidence rate for in-hospital falls was significantly lower in the window-bed group (n = 1123) than in the nonwindow-bed group (n = 925) (IRR 0.55, 95% CI 0.31, 0.95). The incidence rate of in-hospital falls was significantly lower among patients hospitalized in window beds than nonwindow beds. Hospitalization in window beds might be a novel, simple preventive option for in-hospital falls. Further large-scale, prospective, multicenter research is required.