Table 2.

Multinomial logistic regression analysis for predicting PSIs (N = 16,215).

Variables (Reference)	Categories	Adverse Event (Reference = Near Miss)			Sentinel Event (Reference = Near Miss)
		Adjusted OR	95% CI	p	Adjusted OR	95% CI	p
Patient sex (Male)	Female	1.01	0.95–1.09	0.694	1.75	1.54–1.98	<0.001
Patient age (≤19 years)	20–59	1.23	1.05–1.43	0.010	2.97	1.80–4.90	<0.001
	≥60	1.35	1.17–1.57	<0.001	5.02	3.08–8.19	<0.001
Time when the PSI occurred (Day)	Evening	1.01	0.93–1.10	0.823	1.11	0.95–1.29	0.174
	Night	1.03	0.94–1.12	0.589	1.11	0.95–1.30	0.177
Seasons when the PSI occurred (Winter)	Spring	1.15	1.04–1.27	0.006	1.14	0.96–1.36	0.133
	Summer	1.12	1.01–1.23	0.029	1.03	0.86–1.22	0.776
	Fall	1.11	1.00–1.23	0.045	1.03	0.86–1.23	0.746
Incident Reporter (Patient safety officer)	Health provider	1.53	1.35–1.74	<0.001	2.23	1.85–2.70	<0.001
Hospital size (200∼499 beds)	≥500	1.22	1.13–1.31	<0.001	1.08	0.95–1.23	0.222
Location of the PSI (Others)	General ward	1.23	1.12–1.34	<0.001	1.01	0.87–1.16	0.918
	Outpatient clinic	1.54	1.32–1.78	<0.001	0.94	0.69–1.28	0.703
	Special ward	1.65	1.42–1.91	<0.001	1.40	1.05–1.87	0.021
Type of PSI (MT)	Falls	2.73	2.47–3.01	<0.001	11.83	8.58–16.31	<0.001
	SAE	0.75	0.65–0.86	<0.001	2.80	1.85–4.22	<0.001
	IC	1.64	1.34–2.02	<0.001	2.13	1.05–4.33	0.037
	ECD	0.76	0.54–1.06	0.101	4.01	1.93–8.34	<0.001
	Others	3.81	3.33–4.37	<0.001	25.49	18.10–35.90	<0.001
Medical department (Complex support division)	Internal medicine	1.42	1.23–1.63	<0.001	2.04	1.50–2.79	<0.001
	Surgical	1.26	1.09–1.46	0.002	1.45	1.05–2.00	0.023
	Clinical support division	1.92	1.53–2.42	<0.001	1.89	1.08–3.30	0.025

OR: odds ratio; CI: confidence interval; PSI: patient safety incident; TR = treatment room; MO = medical office; IR = injection room; ER = emergency room; ICU = intensive care unit; OR = operating room; RR = recovery room; MT = medication/transfusion; SAE = surgery/anesthesia/examination; IC = infection/contamination; and ECD = equipment/computational disorder.