Table 7: Summary of Findings From Studies Reporting on the Effectiveness of BIS Monitors To Reduce Recovery Time^* (cont).

Study (year)	Basar et al. (2003) (40)	Wong et al. (2002) (31)	Bannister et al. (2001) (41)	Pavlin et al. (2001) (42)
Study type	RCT Group 1: BIS Group 2: SP	RCT Group 1: BIS Group 2: SP	RCT Group 1: BIS Group 2: SP	RCT Over 7 months, primary caregivers were randomized to 1 of 2 groups: Group 1: BIS Group 2: Non-BIS Crossover was at 1-month intervals.
Level of evidence	1	1	1	1
Study population	Patients undergoing open abdominal surgery	Elderly patients, all of whom were older than 60 years, undergoing elective orthopedic surgery	Pediatric patients undergoing inguinal hernia repair (0–3 years old) and tonsillectomy or adenoidectomy (3–18 years old)	Anesthesia providers were assigned on a monthly basis to a BIS or control group using a randomized crossover design. The final analysis had 236 men and 229 women. All of them received propofol and sevoflurane.