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Table 1 Characteristics of 172 children included in this study

From: Impact of changes in head position during head and neck surgery on the depth of tracheal tube intubation in anesthetized children

CharacteristicsTotal
n172
Age, year7 (2–12)
Boys, n (%)110 (63.95)
Weight, kg24.8 (11–84)
Height, cm128 (87–176)
BMI, kg/m217.17 ± 3.81
Types of surgery, n (%)
 ENT surgery160 (93.0)
 Orthopedic surgery7 (4.07)
 Extracranial surgery5 (2.91)
 Insertion depth (Age/2 + 12 cm), cm15.5 (14.4, 16.9)
 Distance of trachea carina to endotracheal tube tip, cm4.1 (1.7–9.2)
 Distance between trachea carina to posterior vocal commissure, cm10.5 (7.6–13.5)
 Tracheal prolapsing, n (%)9 (5.23)
 Hoarseness after surgery, n (%)0
 Bronchial intubation/single lung ventilation, n (%)0