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Table 1 Patient and operator demographics

From: Video laryngoscopy improves intubation success and reduces esophageal intubations compared to direct laryngoscopy in the medical intensive care unit

Characteristic VL %, (n = 234) 95% CI DL %, (n = 56) 95% CI P -value
Mean Age, years 59.5 (IQR 23 to 90 ) 57.7 to 61.3 61.8 (IQR 40 to 82) 58.0 to 65.7 0.27*
Gender      0.46
 Male 56.0% (131) 45.7 to 65.9 50.0% (28) 38.8 to 59.1
DACs      
 Total DACs (median) 2 IQR 1 to 3 1 IQR 1 to 2 0.18
 None 21.0% (49) 16.1 to 26.9 21.4% (12) 10.9 to 32.8 0.52
 Cervical immobilization 1.7% (4) 0.4 to 4.3 5.4% (3) 1.2 to 14.9 0.13
 Blood in Airway 19.2% (45) 14.4 to 24.9 8.9% (5) 3.0 to 19.6 0.07
 Vomit in Airway 6.0% (14) 3.3 to 9.8 7.1% (4) 2.0 to 17.3 0.76
 Facial/neck Trauma 0.43% (1) 0.01 to 2.3 0% (0) 0 to 6.4 1.00
 Obesity 29.5% (69) 23.7 to 35.8 17.86% (10) 8.9 to 30.4 0.10
 Short Neck 28.2 % (66) 22.5 to 34.4 19.6% (11) 10.2 to 32.4 0.24
 Large Tongue 16.2% (38) 11.8 to 21.6 14.3% (8) 6.4 to 26.2 0.84
 Airway Edema 8.6% (20) 5.2 to 12.9 10.7% (6) 4.0 to 21.9 0.61
 Small Mandible 16.2% (38) 11.8 to 21.6 28.6% (16) 17.3 to 42.2 0.05
 Limited Mouth Opening 8.2% (19) 5.0 to 12.4 3.6% (2) 0.4 to 12.3 0.39
 Secretions 11.5% (27) 7.4 to 15.9 3.6% (2) 0.4 to 12.3 0.04
 Hemodynamic Instability 26.5% (62) 21.0 to 32.6 16.1% (9) 7.6 to 28.3 0.12
 Hypoxemia 27.8% (65) 22.1 to 34.0 34.0% (19) 21.8 to 47.8 0.41
Reason for Intubation      0.42
 Airway Protection 20.1% (47) 15.4 to 26.0 21.4% (12) 11.6 to 34.4 0.85
 Respiratory Failure 65.0% (152) 58.5 to 71.1 60.7% (34) 46.8 to 73.5 0.64
 Cardiac Arrest 1.7% (4) 0.5 to 4.3 7.1% (4) 2.0 to 17.3 0.05
 Patient Control 1.3% (3) 0.3 to 3.7 1.8% (1) 0.05 to 9.6 0.58
 Hypoxemia 9.0% (21) 5.6 to 13.4 7.1% (4) 2.0 to 17.3 0.80
 Hemodynamic Instability 1.7% (4) 0.5 to 2.3 1.8% (1) 0.05 to 9.6 1.0
 Severe Acidosis 1.3% (3) 0.3 to 3.7 0% (0) 0.0 to 6.0 1.0
Method of Intubation      <0.001
 RSI 76.5% (179) 70.5 to 81.8 86.0% (48) 73.8 to 93.6 0.15
 SED 22.7% (53) 17.5 to 28.6 3.6% (2) 0.4 to 12.3 0.0005
 OTI 0.9% (2) 0.1 to 3.0 10.7% (6) 0.4 to 21.9 0.0008
Operator Specialty      <0.001
 Internal Medicine 28.2% (66) 22.5 to 34.4 12.5% (7) 5.2 to 24.1 0.02
 Emergency Medicine 13.7% (32) 9.5 to 18.8 35.7% (20) 23.4 to 49.6 0.0003
 Pulmonary/Critical Care 51.7% (121) 45.1 to 58.3 32.1% (18) 20.3 to 46.0 0.01
 Critical Care Medicine 6.4% (15) 3.6 to 10.4 19.6% (11) 10.2 to 32.4 0.006
Operator PGY Level      0.001
 1 9.4% (22) 5.9 to 13.8 7.1% (4) 2.0 to 17.3 0.80
 2 17.1% (40) 12.5 to 22.5 37.5% (21) 25.0 to 51.5 0.001
 3 15.4% (36) 11.0 to 20.7 3.6% (2) 0.4 to 12.3 0.01
 4 21.8% (51) 16.7 to 27.6 28.6% (16) 17.3 to 42.2 0.29
 5 25.2% (59) 19.8 to 31.3 19.6% (11) 10.2 to 32.4 0.49
 6 9.4% (22) 6.0 to 13.9 0.0% (0) 0.0 to 6.4 0.01
Attending 1.7% (4) 0.5 to 4.3 3.6% (2) 0.4 to 12.3 0.33
  1. *T-test. DACs, difficult airway characteristics; DL, direct laryngoscope/laryngoscopy; OTI, oral intubation without sedation; PGY, post-graduate year; RSI, Rapid Sequence Intubation; SED, sedation only; VL, Video laryngoscope/laryngoscopy.