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Table 1 Characteristics of 472 patients with oral cavity or oropharyngeal cancer

From: A data review of airway management in patients with oral cavity or oropharyngeal cancer: a single-institution experience

Characteristic No. of patients %
Head/neck radiation
 No 236 50.0
 Yes 236 50.0
Sex
 Female 60 12.71
 Male 412 87.29
Body mass index (kg/m2)
  ≤ 18.5 17 3.6
 18.6–25.0 228 48.3
 25.1–30.0 157 33.26
 30.1–35.0 51 10.81
 35.1–40.0 16 3.39
  ≥ 40.1 3 0.64
Mallampati score
 Data missing a 16  
 1 63 13.82
 2 205 44.96
 3 130 28.51
 4 58 12.72
Mouth opening
 Data missing 3  
 Full 367 78.25
 Limited 102 21.75
Thyromental distance (≈ cm)
 Data missing 391  
  < 5 20 24.69
  ≥ 5 61 75.31
Edentulous Removable denture
 Data missing 1  
 Yes 101 21.44
 No 370 78.56
Neck movement
 Data missing 3  
 Full range of motion 391 83.37
 Restricted 78 16.63
Cancer location
 Tongue 218 46.19
 Tonsil 98 20.76
 Floor of mouth 49 10.38
 Mandible 26 5.51
 Retromolar region 24 5.08
 Buccal mucosa 22 4.66
 Maxilla gingiva 5 1.06
 Soft palate 5 1.06
 Multiple locations 25 5.30
Cancer stage
 Data missing 3  
 T1 84 17.91
 T2 155 33.05
 T3 92 19.62
 VT4 110 23.45
 TX 24 5.12
 Not staged 4 0.85
Intubation status
 Data missing 16  
 Difficult 58 12.72
 Easy 398 87.28
Primary intubation technique
 Data missing 10  
 Direct laryngoscopy 267 57.79
 Asleep FOI 137 29.65
 Awake FOI 27 5.84
 AirTraq video laryngoscopy 15 3.25
 C-MAC video laryngoscopy 7 1.52
 LMA intubation 3 0.65
 Tracheostomy 6 1.30
Secondary intubation technique
 AirTraq video laryngoscopy 4 50
 Asleep FOI 4 50
  1. Abbreviations: FOI fiber-optic intubation, LMA laryngeal mask airway
  2. aData missing = no data found in the database or the corresponding patient records. Where data are missing, percentages are calculated using the total number of available records