Table 1 Baseline characteristics of the trial groups.

From: Effect of esketamine on postinduction hypotension in elderly patients undergoing elective noncardiac surgery: a secondary analysis of a randomized clinical trial

 

Esketamine group (n = 211)

Normal saline group (n = 213)

P

Demographics

 Age, years

71 (7)

70 (6)

0.66

 Sex, Male

128 (60.7%)

125 (58.7%)

0.68

 Body-mass index, kg/m2

24.0 (4.4)

23.9 (5.0)

0.91

Risk factors and comorbidities

 Hypertension

142 (67.3%)

138 (64.8%)

0.59

 Coronary heart disease

37 (17.5%)

28 (13.5%)

0.21

 Chronic kidney disease

24 (11.4%)

17 (8.0%)

0.24

 Respiratory disease

28 (13.3%)

25 (11.7%)

0.63

 Diabetes mellitus

27 (12.8%)

20 (9.4%)

0.26

Preoperative medication

 Antiplatelet agents

19 (9.0%)

25 (11.7%)

0.36

 Anticoagulants agents

16 (7.6%)

13 (6.1%)

0.55

 Beta blockers

47 (18.7%)

37 (14.7%)

0.21

 Calcium channel blockers

108 (51.2%)

110 (51.6%)

0.93

 ARB

64 (30.3%)

60 (28.2%)

0.62

 ACEI

23 (10.9%)

27 (12.7%)

0.51

 Diuretics

16 (7.6%)

22 (10.3%)

0.32

 Nitrates

8 (3.8%)

13 (6.1%)

0.27

 Statins

52 (24.6%)

45 (21.1%)

0.39

Baseline vital signs

 SBP, mmHg

135 (19)

137 (22)

0.07

 DBP, mmHg

81 (7)

81 (7)

0.40

 Heart rate, bpm

82 (12)

84 (12)

0.06

 SpO2, %

98 (1)

97 (1)

0.22

 BIS value

97 (1)

97 (1)

0.70

ASA physical status

  

1.00

 II

106 (50.2%)

107 (50.2%)

 

 III

105 (49.8%)

106 (49.8%)

 

Type of surgery

  

0.94

 Breast/thyroid/vascular

7 (3.3%)

6 (2.8%)

 

 Ears/nose/throat/ophthalmology

13 (6.2%)

11 (5.2%)

 

 Gastrointestinal/gynaecologic

39 (18.5%)

35 (16.4%)

 

 Hepatobiliary/pancreatic

16 (7.6%)

12 (5.6%)

 

 Neurosurgical

13 (6.2%)

16 (7.5%)

 

 Orthopaedic/spine

35 (16.6%)

41 (19.2%)

 

 Thoracic

32 (15.2%)

38 (17.8%)

 

 Urologic

56 (26.5%)

54 (25.4%)

 

Working years of anesthesiologist

11 (15)

6 (14)

0.58

  1. ARB angiotensin receptor blockers, ACEI angiotensin-converting enzyme inhibitors, SBP systolic blood pressure, DBP diastolic blood pressure, SpO2 peripheral pulse oximetry, BIS bispectral index.
  2. Values are presented as median (IQR) or number (proportion).