Table 3 Intubation profiles compared between CMAC video-laryngoscope and McCoy laryngoscope according to each intubation step
Characteristics | Group C (n = 48) | Group M (n = 47) | P value |
|---|---|---|---|
Nose to oropharynx | |||
 Grade of difficulty |  |  | 0.434 |
  1 | 43 (89.6) | 42 (89.4) |  |
  2 | 2 (4.2) | 4 (8.5) |  |
  3 | 3 (6.3) | 1 (2.1) |  |
 Time (S) | 9.6 ± 5.6 | 8.5 ± 2.6 | 0.563 |
Oropharynx to glottic inlet | |||
 Grade of difficulty |  |  | < 0.001 |
  1 | 37 (77.1) | 12 (25.5) |  |
  2 | 11 (22.9) | 35 (74.5) |  |
 Time (S) | 13.0 ± 5.3 | 17.7 ± 7.7 | 0.004 |
Glottic inlet to trachea | |||
 Grade of difficulty |  |  | 0.002 |
  1 | 18 (37.5) | 5 (10.6) |  |
  2 | 30 (62.5) | 42 (89.4) |  |
 Time (S) | 16.8 ± 7.4 | 22.0 ± 11.4 | 0.027 |
Total intubation time (S) | 39.5 ± 11.4 | 48.1 ± 13.9 | 0.004 |