Table 2 Patient-specific potential risk factors for unplanned reintubation caused by AAC

Sex [n (%)]

0.039^*

 Male

17(47.22)

42(29.17)

2.17(1.03 to 4.58)

 Female

19(52.78)

102(70.83)

 Mean

59.26 ± 19.25

46.07 ± 15.58

< 0.001^#

  > 65

17(47.22)

14(9.72)

8.33(3.53 to 19.61)

< 0.001^*

  ≤ 65

19(52.78)

130(90.28)

BMI (kg m⁻²)

24.71 ± 4.45

23.69 ± 3.84

1.01(−0.45 to 2.47)

0.172^#

ASA [n (%)]

< 0.001^*

 1

5(13.89)

61(42.36)

 2

22(61.11)

77(53.47)

3.49(1.25 to 9.74)

0.017

 3

9(25.00)

6(4.17)

18.30(4.61 to 72.58)

< 0.001

Smoking history [n (%)]

0.192^*

 Yes

10(27.78)

26(18.06)

1.75(0.75 to 4.07)

 No

26(72.22)

118(81.94)

Sepsis [n (%)]

0.039^{^}

 Yes

2(5.56)

0(0.00)

–

 No

34(94.44)

144(100.00)

Heart disease history [n (%)]

0.002^*

 Yes

9(25.00)

10(6.94)

4.46(1.66 to 12.05)

 No

27(75.00)

134(93.06)

Cerebral infarction history [n (%)]

< 0.001^*

 Yes

8(22.22%)

2(1.39%)

20.41(4.08 to 100.00)

 No

28(77.78%)

142(98.61%)

Asthma/COPD history [n (%)]

0.257^*

 Yes

2(5.56)

3(2.08)

2.76(0.44 to 17.24)

 No

34(94.44)

141(97.92)

Hypertension [n (%)]

0.069^*

 Yes

13(36.11)

31(21.53)

2.06(0.94 to 4.52)

 No

23(63.89)

113(78.47)

Diabetes mellitus [n (%)]

0.799^*

 Yes

3(8.33)

14(9.72)

0.84(0.23 to 3.11)

 No

33(91.67)

130(90.28)