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Table 3 Comparison of the five devices used by participants who were inexperienced (n  =  54) vs. experienced (n  =  25) with orotracheal intubation in critical care

From: Comparison of four channelled videolaryngoscopes to Macintosh laryngoscope for simulated intubation of critically ill patients: the randomized MACMAN2 trial

Groups

Macintosh n  =  79

AirTraq n  =  79

KingVision n  =  79

Pentax AWS200 n  =  79

VividTrac n  =  79

p value

First-attempt success

 Experienced

18 (72.0)

25 (100.0)

25 (100.0)

24 (96.0)

23 (92.0)

< 0.001

 Inexperienced

38 (70.0)

52 (96.3)

52 (96.3)

53 (98.2)

50 (92.6)

< 0.001

Time to intubation (s)

 Experienced

86.73 (57.3)

55.41 (16.4)

56.55 (25.5)

50.44 (20.7)

78.16 (45.8)

< 0.001

 Inexperienced

95.46 (61.3)

73.56 (34.2)

70.97 (22.3)

68.52 (37.4)

85.14 (41.5)

0.002

Lowest SpO2 (%)

 Experienced

85.33 (5.21)

88.09 (1.78)

88.13 (2.87)

88.74 (2.14)

87.13 (4.36)

0.01

 Inexperienced

84.02 (7.39)

86.88 (3.74)

87.12 (2.14)

87.48 (3.75)

85.70 (3.75)

< 0.001

Percentage of glottic opening

 Experienced

56.88 (29.4)

88.96 (13.0)

90.42 (13.9)

88.54 (13.6)

76.04 (19.6)

< 0.001

 Inexperienced

57.25 (24.4)

83.98 (15.9)

91.30 (13.2)

90.19 (13.6)

80.74 (21.4)

< 0.001

Ease of device use

 Experienced

6.92 (1.93)

7.29 (1.73)

7.83 (1.63)

8.00 (1.79)

5.67 (1.74)

< 0.001

 Inexperienced

6.08 (2.29)

7.00 (1.53)

7.21 (1.55)

7.90 (1.32)

6.44 (2.15)

< 0.001

  1. The data are the mean  ±  SD or number (%)
  2. aRated by the participants on a scale from 0 to 10