Table 3 Multivariate logistic regression analysis for HAP in the training group

Model 1

 Age

1.084

1.065–1.104

<0.001

 NIHSS score within 24 h of admission

1.068

1.04–1.096

<0.001

 SHR (continuous)

4.971

2.549–9.692

<0.001

Smoking status

 Still smoke

3.697

2.672–5.115

< 0.001

 Used to smoke

1.754

0.977–3.152

0.06

 Never smoke

Reference

OCSP sub-type

 TACI

7.524

2.035–27.82

0.002

 PACI

4.808

1.367–16.914

0.014

 POCI

4.677

1.307–16.732

0.018

 LACI

Reference

 Dysphagia

6.713

4.552–9.898

< 0.001

Model 2

Age

 65–80 years old

Reference

 > 80 years old

2.739

2.087–3.596

< 0.001

NIHSS score within 24 h of admission

 0∼4

Reference

 5∼9

1.861

1.322–2.618

< 0.001

 10∼14

3.012

1.981–4.579

< 0.001

 15∼42

2.964

1.769–4.965

< 0.001

SHR (quartiles)

 SHR1 group(0.175–0.726)

Reference

 SHR2 group(0.726–0.820)

1.268

0.857–1.877

0.235

 SHR3 group(0.820–0.928)

1.353

0.918–1.992

0.126

 SHR4 group(0.928–2.760)

2.371

1.636–3.438

< 0.001

Smoking status

 Still smoke

3.263

2.367–4.498

< 0.001

 Used to smoke

1.616

0.893–2.922

0.112

 Never smoke

Reference

OCSP sub-type

 TACI

7.719

2.059–28.940

0.002

 PACI

4.928

1.376–17.644

0.014

 POCI

4.955

1.362–18.028

0.015

 LACI

Reference

 Dysphagia

7.221

4.911–10.618

< 0.001