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Table 2 Ten different subgroup settings and the results of the duration of intubation, success rate, and visual analogue difficulty scoring

From: The evaluation of a better intubation strategy when only the epiglottis is visible: a randomized, cross-over mannequin study

  Manipulation Holding part of tube Shape Longitudinal distance (cm) Bend angles (°) Duration of intubation Success rate (%) Visual analogue scale score (cm)
Mean ± Standard deviation (seconds) HR 95% CI   
1 Top Banana 28 cm 33.63 ± 33.87 1.00 1.00 90.63% 4.24 ± 2.11
2 Top Banana 26 cm 31.91 ± 31.82 1.05 0.60–1.83 93.75% 4.34 ± 2.33
3 Middle Banana 28 cm 30.10 ± 18.73 1.01 0.63–1.62 96.88% 4.62 ± 1.94
4 Middle Banana 26 cm 31.06 ± 24.59 1.04 0.68–1.59 93.75% 4.48 ± 2.12
5 Top Straight-to-cuff 35° 34.81 ± 27.70 0.87 0.55–1.37 93.75% 4.67 ± 2.30
6 Top Straight-to-cuff 50° 28.03 ± 16.36 1.11 0.68–1.82 96.88% 4.36 ± 2.32
7 Middle Straight-to-cuff 35° 34.10 ± 32.12 1.00 0.65–1.53 93.75% 4.29 ± 4.48
8 Middle Straight-to-cuff 50° 27.53 ± 16.31 1.15 0.74–1.78 96.88% 3.90 ± 2.12
9 Lifting of epiglottis Straight-to-cuff 35° 23.75 ± 14.24 1.54 1.01–2.34 100% 4.15 ± 2.22
10 Lifting of epiglottis Straight-to-cuff 50° 20.72 ± 6.90 1.85 1.23–2.78 100% 3.97 ± 2.13