Table 2.

Proportion of patients in Osaka City, Japan, whose time period from emergency medical service arrival at the scene to departure from the scene was >60 min, grouped by month of study (January–April 2019 and 2020)

Cause	Month	n/N	(%)	OR (95% CI)	P‐value
Acute disease	1	114/12,661	(0.9)	Ref.
	2	98/10,448	(0.9)	1.04 (0.8–1.37)	0.766
	3	105/9,837	(1.1)	1.19 (0.91–1.55)	0.206
	4	101/4,058	(2.5)	2.81 (2.14–3.68)	<0.001
Traffic accidents	1	8/920	(0.9)	Ref.
	2	3/886	(0.3)	0.39 (0.1–1.47)	0.162
	3	9/963	(0.9)	1.08 (0.41–2.8)	0.882
	4	0/329	(0.0)	n.a.

CI, confidence interval; n.a., not available; OR, odds ratio; Ref., reference.