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Table 3 Characteristics of patients with upper airway obstruction

From: Incidence of airway complications in patients using endotracheal tubes with continuous aspiration of subglottic secretions

Characteristics Upper airway obstruction (N:7) Non-upper airway obstruction (N:79) p value
Length of intubation (days), mean ± SD 5.9 ± 2.8 6.0 ± 5.0 0.90
Attempts at intubation, mean ± SD 2.3 ± 1.1 1.2 ± 0.5 0.001
Cormack–Lehane score II–IV (%) 5 (71.4) 7 (8.8) < 0.001
Difficult intubation (%) 5 (71.4) 8 (10.1) 0.001
Intubation outside the hospital (%) 0 4 (5.1) 0.70
Crude mortality (%) 1 (14.3) 6 (7.6) 0.53