Table 6 Multivariate Cox regression of upper airway obstruction in combination with reintubation based on period of anesthesia (n = 42,055)

Age (ref= > 6)

1^a 0.01

1^a 0.005

1-6

_

_

3.7 (0.90, 14.6)^a

4.7 (0.90, 23.3)^a

< 1

9.2 (2.2, 39.0)^b

18.5 (3.7, 93.6)^b

Site of operation (ref = superficial)

1^a < 0.001

Broncho/laryngoscopy

22.8 (2.6, 201.8)^b

Ear-nose-throat

4.7 (0.57, 38.3)^a

_

_

_

Eye

_

Thoracic

0.83 (0.05, 13.3)^a

Abdomen

1.2 (0.13, 9.9)^a

Spine & extremity

1.4 (0.14, 13.7)^a

Remote*

_