Table I.

Patient demographics.

	Group
Parameter	P	E	P+E	E+P
Median age (range), years	68.4 (65–78)	69.7 (65–80)	72.3 (65–79)	71.8 (65–82)
Gender, male/female	24/26	25/25	24/26	24/26
Median weight (range), kg	60.7 (50–84)	62.4 (52–82)	62.6 (47–85)	61.8 (49–84)

There are no significant difference between the treatment groups (P>0.05). P, propofol (1.5–2.0 mg/kg); E, etomidate (0.15-0.2 mg/kg); P+E, propofol (0.75–1 mg/kg) followed by etomidate (0.075-0.1 mg/kg); E+P, etomidate (0.075-0.01 mg/kg) followed by propofol (0.75–1 mg/kg).