Table 4. Factors associated with intraoperative cardiac arrest in older patients.

Factors	Odds Ratio	95% CI	Estimated Coefficient	P value
Age, yr
60–74	1.0 (Reference)
75–90	0.89	0.57–1.42	−0.10	0.65
≥91	0.70	0.09–5.27	−0.35	0.73
Sex
Male	1.0 (Reference)
Female	1.01	0.67–1.52	0.10	0.96
ASA physical status
I–II	1.0 (Reference)
III–V	14.52	4.48–47.08	2.67	<0.001
Surgical procedures
Nonemergency	1.0 (Reference)
Emergency	8.07	5.14–12.68	2.09	<0.001
Anesthesia technique
No general anesthesia	1.0 (Reference)
General anesthesia	4.31	2.21–8.41	1.46	<0.001

ASA = American Society of Anesthesiologists; OR: odds ratio; CI = confidence interval.