Table 3 Multiple logistic regression of primary outcome. Weighting cohort was calculated by inverse probability of treatment weighting. aOR, adjusted odds ratio; 95% CI, 95% confidence interval; SOFA, sequential organ failure assessment; APACHE II, Acute Physiology and Chronic Health Evaluation II; PR, pulmonary rehabilitation; P/F, PaO₂/FiO₂

Age ≤ 75 years

0.63 (0.33–1.17)

0.146

0.42 (0.20, 0.88)

0.022

Female

1.07 (0.52–2.20)

0.860

0.60 (0.25, 1.41)

0.238

Pre-existing respiratory diseases

1.42 (0.59–3.41)

0.432

4.90 (1.06, 22.63)

0.042

Smoking history

0.67 (0.28–1.55)

0.356

0.37 (0.11, 1.29)

0.120

Drinking history

1.76 (0.68–4.59)

0.247

3.42 (0.85, 13.78)

0.084

Bacteria coinfection

0.83 (0.42–1.62)

0.575

0.99 (0.48, 2.06)

0.982

Fungi coinfection

1.10 (0.52–2.29)

0.800

1.16 (0.42, 3.25)

0.775

Respiratory rate < 24

0.32 (0.15–0.69)

0.005

0.33 (0.12, 0.92)

0.034

SOFA scores ≥ 5

11.17 (4.42–33.03)

< 0.001

4.67 (1.35, 16.16)

0.015

APACHE II scores ≥ 10

1.38 (0.70–2.72)

0.352

1.17 (0.48, 2.89)

0.728

Baseline P/F > 150

0.37 (0.18–0.73)

0.005

0.33 (0.16, 0.70)

0.004

PR intervention

0.45 (0.16–1.16)

0.10

0.10 (0.04, 0.30)

< 0.001