Effects of dexmedetomidine combined with etomidate on postoperative cognitive function in older patients undergoing total intravenous anaesthesia: a randomized, double-blind, controlled trial

Table 1 Demographic data

Indexes	EN₁ group n=34	ED₁ group n=31	EN₂ group n=32	ED₂ group n=35	F/X² values	P values
Age(year)	67.1±4.0	67.21±5.0	66.7±3.9	66.9±4.1	0.139	0.936
Weight(kg)	57.1±6.7	58.01±5.5	56.6±9.3	57.6±8.5	0.187	0.905
ASA(I/II)	14/20	14/17	14/18	15/20	0.111	0.990
BMI(kg/m²)	21.8±1.4	21.7±1.5	21.5±1.7	21.3±1.7	0.684	0.563
Gender(male/female)	18/16	16/15	17/15	19/16	0.293	0.961
Level of education (illiterate/primary school literacy/middle school)	13/16/5	13/14/4	14/15/3	15/15/5	0.675	0.995

ASA American Society of Anesthesiologists, BMI Body mass index, EN₁ Etomidate-remifentanil with duration of surgery less than 60min, ED₁ Etomidate-remifentanil and dexmedetomidine with duration of surgery less than 60min, EN₂ Etomidate-remifentanil with duration of surgery more than 60min, ED₂ Etomidate-remifentanil and dexmedetomidine with duration of surgery more than 60min

ISSN: 1471-2318