Table 5. Baseline characteristics of the cancellation cases.

	Preclinic group (n=21)	Inpatient group (n=17)	P value
Age, mean ± SD, years	69.24±14.142	71.12±10.295	0.641
ASA physical status, n (%)			0.217
II	12 (57.14)	13 (76.47)
III	9 (42.86)	4 (23.53)
Age-adjusted Charlson comorbidity index, mean ± SD	6.43±1.690	6.65±1.455	0.667
No. of conditions, n (%)
1	9 (42.86)	2 (11.76)	0.048
2	7 (33.33)	8 (47.06)	0.391
3	5 (23.81)	4 (23.53)	0.984
≥4	0 (0)	3 (17.65)	0.081
Hypertension, n (%)	11 (52.38)	12 (70.59)	0.257
Coronary artery disease, n (%)	5 (23.81)	6 (35.29)	0.440
Arrhythmia, n (%)	2 (9.52)	4 (23.53)	0.253
Congestive heart failure, n (%)	4 (19.05)	2 (11.76)	0.544
Peripheral vascular disease, n (%)	0 (0)	2 (11.76)	0.193
Diabetes, n (%)	3 (14.29)	6 (35.29)	0.140
Previous stroke or transient ischemic attack, n (%)	2 (9.52)	4 (23.53)	0.253
Chronic kidney disease, n (%)	0 (0)	1 (5.88)	0.477
Chronic obstructive pulmonary disease, n (%)	2 (9.52)	3 (17.65)	0.468

SD, standard deviation; ASA, American Society of Anesthesiologists.