Table 2 Characteristics of capnography and control arms for enrolled patients

From: Microstream capnography during conscious sedation with midazolam for oral surgery: a randomised controlled trial

Characteristic

Capnography (n=93)

Control (n=97)

P value

 

n (%)

 

Gender

 Male

24 (26%)

35 (36%)

0.13

 Female

69 (74%)

62 (64%)

 

Alcohol drinker

59 (63%)

52 (54%)

0.23

Smoker

24 (26%)

26 (27%)

0.88

ASA classification

 I

65 (70%)

61 (63%)

0.31

 II

28 (30%)

36 (37%)

 
 

Mean (s.d.)

 

Age (years)

31.2 (12.7)

31.5 (12.4)

0.86

BMI (kg/m2)

24.5 (3.7)

24.4 (4.2)

0.99

Baseline parameters

 EtCO2 (mm Hg)

37.6 (3.8)

36.4 (4.1)

 

 Respiratory rate (per min)

17.9 (4.6)

17.3 (4.5)

 

 SpO2 (%)

99.1 (1.2)

99.2 (1.2)

 
  1. Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index; EtCO2, end-tidal carbon dioxide; SpO2, haemoglobin oxygen saturation.
  2. Data are presented as mean (s.d.) or n (%) as appropriate.
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