Intubation attempt Mean time (SD) p value
C-MAC 1st attempt 22 (8)  
C-MAC (2 weeks) 19 (9)  0.0421 (1st attempt vs 2 wk
C-MAC (12 weeks) 16 (4) <0.0001 (1st attempt vs 12 wk)
Table 2: Mean intubation time in seconds (SD) for C-MAC attempts. At 2 and 12 weeks C-MAC attempt is compared with the first C-MAC attempt.