Table 2 NI_min, intubation time in the intensive care unit, CAP-D score, incision-suture time, sevoflurane concentration at minimum temperature, and minimum temperature in the operating room across four age groups (median (IQR), Spearman's correlation coefficient rho, 95% CI, and the p value for the correlation of each variable with age)

 ≤ 0.5

22

5

(1.0, 10.8)

78.2

(29.2, 136.5)

16

(11.0, 18.0)

4.1

(3.8, 4.9)

1.8

(1.5, 2.0)

31.5

(27.9, 32.7)

 > 0.5 – 1

24

6

(1.0, 20.0)

29.8

(15.2, 70.3)

13

(7.5, 24.0)

5.0

(4.2, 5.9)

1.9

(1.1, 2.0)

28.8

(24.8, 31.6)

 > 1 – 10

29

21

(3.5, 32.0)

11.2

(7.2, 24.8)

9

(6.0, 16.0)

5.3

(4.6, 6.1)

1.8

(1.5, 2.1)

28.3

(26.9, 32.0)

 > 10

14

27.5

(20.3, 40.8)

10.8

(7.7, 17.9)

9.5

(6.3, 14.3)

5.3

(4.1, 6.4)

2.3

(2.2, 2.7)

31.8

(28.6, 33.4)

rho

95% CI

0.50

0.32 – 0.65

-0.55

-0.68 – -0.39

0.32

-0.49 – -0.12

0.26

0.05 – 0.44

0.31

0.09 – 0.49

0.07

-0.13 – 0.27

p

 < 0.0001

 < 0.0001

0.002

0.014

0.006

0.53