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. 2018 Oct 17;154(1):9–17. doi: 10.1001/jamasurg.2018.3577

Table 3. Secondary End Points.

Variable No. (%) Mean Difference, % (95% CI)a P Value
Sellick Group (n = 1735) Sham Group (n = 1736)
Mortality 30 (2) 27 (2) −0.2 (−1.0 to 0.7) .69
Suspected pneumonia within 24 h 15 (0.9) 10 (0.6) −0.3 (−0.8 to 0.3) .31
Aspiration pneumonia 4 (0.2) 4 (0.2) 0 (−0.3 to 0.3) >.99
Severe pneumonia 2 (0.1) 2 (0.1) 0 (−0.2 to 0.2) >.99
Length of hospital stay, median (IQR), d 3 (1-9) 4 (1-9) 0.3 (−0.2 to 0.8) .89
Length of hospital stay >28 d 91 (5) 93 (5) 0.1 (−1.4 to 1.6) .89
Admission into ICU 181 (10) 201 (12) 1.1 (−0.9 to 3.2) .28
Length of ICU stay, median (IQR), d 5 (2-11) 5 (2-10) −0.4 (−1.9 to 1.1) .58
Adverse eventsb 276 (16) 256 (15) −1.2 (−3.6 to 1.2) .34
Serious adverse eventsc 200 (12) 211 (12) 0.6 (−1.5 to 2.8) .57

Abbreviations: ICU, intensive care unit; IQR, interquartile range.

a

Mean difference is calculated as Sellick group minus sham group.

b

Systematically included the following categorical end points: pulmonary aspiration, aspiration pneumonia, difficult and impossible tracheal intubation, traumatic complications, postoperative reintubation, admission into ICU, and mortality, which were present in 83% of patients with adverse events.

c

Systematically included the following categorical end points: severe aspiration pneumonia, impossible tracheal intubation, postoperative reintubation, admission into ICU, and mortality, which were present in 83% of patients with serious adverse events.