Table 2 Primary and secondary outcomes in the two groups
Neck extension group (n = 32) | Neutral position group (n = 33) | OR or MD [95% CI] | P-value | |
|---|---|---|---|---|
Primary outcome | ||||
Success rate in tube advancement at the first two attempts | 30/32 (93.8%) | 20/33 (60.6%) | 9.75 [1.98, 47.94] | 0.002 |
Secondary outcomes | ||||
Nasal bleeding | ||||
Incidence, n(%) | 5 (15.6%) | 11 (33.3%) | 0.4 [0.20, 2.15] | 0.150 |
Severity (no/tinged/mild/severe), n | 27/ 5 / 0/ 0 | 22/ 11/ 0/ 0 | ||
Intubation time | ||||
Time from initiation of inserting tube to passing into oropharynx (s) | 10.3 ± 6.6 | 16.5 ± 14.8 | −6.2 [− 11.9, − 0.5] | 0.035 |
Total intubation time (s) | 61.2 ± 35.3 | 69.6 ± 37.4 | −8.4 [− 26.4, 9.7] | 0.356 |