Table 4 Multivariate Logistic Regression Analysis for Surgical Airway in the Validation Dataset

qSAT score

3.19

2.47–4.12

<  0.0001

Admission to the tertiary emergency hospitals

0.56

0.34–0.93

0.026

RTS (per 1 point increase)

1.01

0.89–1.13

0.928

ISS (per 1 point increase)

0.99

0.98–1.01

0.834

Age group

 16–59 y

0.85

0.58–1.25

0.433

  ≥ 60 y

Reference

–

–

Male sex

1.54

1.15–2.07

0.141