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Table 1 The demographics and anesthesia date

From: Airway management in children with hemifacial microsomia: a restropective study of 311 cases

Age(years) (n = 311)
 5–8173(55.6%)
 9–13102(32.8%)
 14–1736(11.6%)
Sex (n = 136)
 Male84(62%)
 Female52(38%)
Side involved (n = 311)
 Left157(50.4%)
 Right150(48.2%)
 Bilateral4(1.3%)
Anesthesia (n = 311)
 Endotracheal tube307(98.7%)
 Intubation under spontaneous breathing1(0.3%)
 Intubation with muscle relaxants306 (99.7%)
 LMA4(1.2%)
Mask ventilation classification (n = 311)
 I292 (93.8%)
 II18 (5.7%)
 III1 (0.3%)
 IV0 (0%)
  1. Mask ventilation classification, Class I: ventilated by mask; Class II: ventilated by mask with oral airway/adjuvant with or without muscle relaxant; Class III: difficult ventilation (inadequate, unstable, or requiring two providers) with or without muscle relaxant; Class IV: unable to mask ventilate with or without muscle relaxant