| Summary: | Aim The rapid response system (RRS) is an in‐hospital medical safety system. To date, not much is known about patient disposition after RRS activation, especially discharge home. This study aimed to investigate the prevalence, characteristics, and outcomes of patients with adverse events who required RRS activation. Methods Retrospective data from the In‐Hospital Emergency Registry in Japan collected from April 2016 to November 2020 were eligible for our analysis. We divided patients into Home Discharge, Transfer, and Death groups. The primary outcome was the prevalence of direct discharge home, and independently associated factors were determined using multivariable logistic regression. Results We enrolled 2,043 patients who met the inclusion criteria. The prevalence of discharge home was 45.7%; 934 patients were included in the Home Discharge group. Age (adjusted odds ratio [AOR] 0.96; 95% confidence interval [CI], 0.95–0.97), malignancy (AOR 0.69; 95% CI, 0.48–0.99), oxygen administration before RRS (AOR 0.49; 95% CI, 0.36–0.66), cerebral performance category score on admission (AOR 0.38; 95% CI, 0.26–0.56), do not attempt resuscitation order before RRS (AOR 0.17; 95% CI, 0.10–0.29), RRS call for respiratory failure (AOR 0.50; 95% CI, 0.34–0.72), RRS call for stroke (AOR 0.12; 95% CI, 0.03–0.37), and intubation (AOR 0.20; 95% CI, 0.12–0.34) were independently negative, and RRS call for anaphylaxis (AOR 15.3; 95% CI, 2.72–86.3) was positively associated with discharge home. Conclusion Less than half of the in‐hospital patients under RRS activation could discharge home. Patients’ conditions before RRS activation, disorders requiring RRS activation, and intubation were factors that affected direct discharge home.
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