High Incidence of Burst Suppression during Propofol Sedation for Outpatient Colonoscopy: Lessons Learned from Neuromonitoring

Table 2

Descriptive statistics for PSi data.

	N	Range	Mean	Standard deviation	95.0% CI of mean	value
Mean PSi during GA: PSi 25–50	118	26.5–49.4	38.8	5.5	37.8–39.9	<0.001
Mean PSi during deep GA: PSi <25	33	12.8–25.0	21.1	4.0	19.7–22.6
Percent of case in sedation: PSi >50	118	2.6–100.0	42.0	25.7	37.3–46.7	<0.001
Percent of case during GA: PSi 25–50	118	2.0–97.3	53.1	24.6	48.6–57.6
Percent of case during deep GA: PSi <25	33	0.4–77.5	20.6	21.2	13.1–28.1

Statistical significance between the two means. The three means to be significantly different from one another.