Table 2. Intraoperative cardiac arrest and death incidences among 18,367 anesthetics in older patients according to anesthesia technique.

	Anesthetics	Cardiac Arrests			Deaths
Anesthesia technique	n	n	Incidence per 10,000	95% CI	n	Incidence per 10,000	95% CI
General anesthesia	10,541	86	81.58	56.70–106.48	57	54.07	40.07–68.07
Regional anesthesia
- Epidural/spinal	6,520	8	12.27	0.04–24.50	5	7.66	0.95–14.39
- Plexus block	597	0	0.00	0.00–0.00	0	0.00	0.00–0.00
Sedation	488	0	0.00	0.00–0.00	0	0.00	0.00–0.00
Other#	221	6	271.49	10.54–532.44	6	271.49	57.22–485.76

CI = confidence interval;

^#Monitored anesthesia and supportive care in ASA IV-V physical status patients.