Table 2 Supraglottic airway device performance. Bonferroni correction was applied for multiple comparisons

n = 80

n = 80

n = 80

First attempt success:

number (%); [95% CI]^a

80 (100);

[95 to 100]^b

72 (90);

[79 to 95]

73 (91);

[81 to 96]

Overall success:

number (%); [95% CI]^c

80 (100);

[95 to 100]^d

73 (91);

[81 to 96]

76 (95);

[87 to 99]

n = 80

n = 73

n = 76

Leak pressure - cmH₂O: mean (SD); [95% CI]^e

18.0 (3.4);

[17.2 to 18.7]

15.9 (3.2);

[15.1 to 16.6]^f

17.3 (3.7);

[16.4 to 18.1]

Number of attempts

1/2/3: number (%)^c

80/0/0

(100/0/0)

72/1/0

(99/1/0)

73/2/1

(96/3/1)

Ease of insertion:

number (%)^g

77/2/0/0

(97/3/0/0)^b

51/21/1/0

(70/29/1/0)

54/15/6/0

(72/20/8/0)

Insertion time - seconds:

mean (SD); [95% CI]^e

24 (6);

[23–25]^d

20 (7);

[19–22]

22 (7);

[20–24]

n = 68

n = 45

n = 51

Fiberoptic view:

number (%)^h

27/29/10/2

(40/43/15/3)

26/14/4/1

(58/31/9/2)

22/24/5/0

(43/47/10/0)

Epiglottic downfolding:

number (%)ⁱ

11 (17)

5 (11)

5 (10)