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Table 2 Clinical characteristics

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

Clinical characteristics

EN1 group

n=34

ED1 group

n=31

EN2 group

n=32

ED2 group

n=35

F value

P value

Time to spontaneous respiration (min)

17.9±2.4

20.0±3.3*

18.0±3.0

21.0±3.2#

9.896

0.000

Time to recovery (min)

19.8±2.6

24.0±4.6*

20.1±3.5

25.1±3.5#

19.166

0.000

Tracheal extubation time (min)

21.6±2.8

27.0±5.5*

22.0±4.3

28.1±4.6#

18.816

0.000

PACU stay time (min)

59.0±5.3

63.0±9.6*

71.3±9.8

75.8±10.7#

26.500

0.000

Duration of surgery (min)

47.3±6.4

46.9±6.1

101.3±6.4

100.6±6.4

154.334

0.000

Dosage of etomidate (mg)

55.0±6.5

45.9±6.0*

93.5±11.3

75.3±7.3#

224.868

0.000

Dosage of remifentanil (µg)

909.8±45.9

886.9±39.2*

1656.9±196.3

1486.3±128.9#

341.445

0.000

  1. PACU Postanesthesia care unit, 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
  2. * p < 0.05 vs.EN1, # p < 0.05 vs.EN2.