McGrath (n = 105) | Pentax (n = 105) | Macintosh (n = 105) | p-value | |
---|---|---|---|---|
Total success rate | 105 (100) | 105 (100) | 103 (98) | 0.331 |
1st attempt success | 105 (100) | 105 (100) | 95 (91) | < 0.001 |
Intubation time | 22 [15–34] | 22 [13–33] | 25 [18–40] | 0.012 |
Incidence of dental click | 23 (22) | 36 (34) | 48 (46)a | 0.001 |
Difficulty grade | 3 [2–5] | 3 [2–4] | 5 [3.5–7] | < 0.001 |
Glottic grade | < 0.001 | |||
I | 77 (73) | 83 (79) | 13 (12) | |
IIa | 4 (4) | 7 (7) | 12 (11) | |
IIb | 24 (23) | 15 (14) | 64 (62) | |
III | 0 (0) | 0 (0) | 14 (13) | |
IV | 0 (0) | 0 (0) | 2 (2) |