Skip to main content

Table 2 Comparison of baseline characteristics and outcomes between the first intubation in repeatedly intubated (exposed) patients with matched, singly intubated (unexposed) patients

From: Reintubation in critically ill patients: procedural complications and implications for care

Characteristic

Repeatedly intubated

Singly intubated

P value

( n = 151)

( n = 302)

Baseline airway assessment

   

Mallampati class

  

0.39

 I or II

85 (56)

162 (54)

 

 III or IV

20 (13)

55 (18)

 

 Missing

46 (30)

85 (28)

 

Mouth opening

  

0.02

  < 2 cm

13 (9)

9 (3)

 

  ≥ 2 cm

110 (73)

245 (81)

 

 Missing

28 (19)

48 (16)

 

Thyromental distance

  

0.09

  < 2 fingers

61 (40)

98 (32)

 

  ≥ 2 fingers

53 (35)

137 (45)

 

 Missing

37 (25)

67 (22)

 

Neck range of motion

  

0.33

 Normal

107 (71)

213 (71)

 

 Limited

6 (4)

15(5)

 

 Cervical spine collar

7 (5)

26 (9)

 Missing

31 (21)

48 (16)

 

Provider anticipated difficulty

37 (27)

75 (25)

0.70

Difficult intubation

   

Intubation attempts

   

 1 or 2

134 (89)

285 (94)

0.03

  ≥ 3

17 (11)

17 (6)

Rank of final intubator

  

0.77

 Fellow

98 (70)

210 (70)

 

 Resident or other

28 (21)

64 (21)

 

 Attending

16 (9)

28 (9)

 

Adjunct to DL useda

16 (11)

3 (1)

<0.001

Cormack–Lehane grade

  

0.02

 1

91 (60)

201 (67)

 

 2

33 (22)

74 (25)

 

 3

3 (2)

16 (5)

 4

3 (2)

4 (1)

 

 Missing

16 (11)

7 (2)

 

Procedural complicationsb

8 (6)

33 (12)

0.07

Major complications

6 (4)

28 (9)

0.06

 Hypotension

3 (2)

17 (6)

0.09

 Hypoxia

3 (2)

13 (4)

0.28

Arrhythmia

2 (1)

3 (1)

1.00

Aspiration

1 (1)

4 (1)

0.69

  1. Data presented as number (%). P values are derived from generalized estimating equations (dichotomous outcomes) or overall comparisons from multinomial logistic regression (categorical outcomes). DL, direct laryngoscopy. aAdjuncts to DL included use of a gum elastic bougie, fiberoptic bronchoscopy, an intubating laryngeal mask airway, an Airtraq® (Prodol Ltd., Vizcaya, Spain) laryngoscope and a King® (Kingsystems, Noblesville, IN, USA) supraglottic airway. bComplications with frequencies of 0 are omitted from the table.