Feasibility of breath monitoring in patients undergoing elective colonoscopy under propofol sedation: A single-center pilot study

Table 1 Demographic characteristics

	Event (n = 37)	No event (n = 39)	P value
Age (yr)	60.8 (± 18.6)	67.8 (± 18.9)	NS
Male:female (25:51)	12:25	13:26	NS
ASA I (21)	12	9	NS
ASA II (22)	12	10	NS
ASA III (33)	13	20	NS

Data are shown as absolute numbers or means (± SD) as indicated; NS: Not significant.

Table 2 Correlation of the total propofol dose with respiratory events and SaO₂

	Event (n = 37)	No event(n = 39)	P value
Total propofol dose (mg)	228.6 (± 78.8)	189.5 (± 81.6)	0.01
SaO2 mean (%)	99.86 (± 0.4)	99.73 (± 0.7)	NS

Data are given as the mean (± SD); NS: Not significant.