Table 3 The relationship between death and spontaneous pneumothorax/pneumomediastinum.

From: Patient self-inflicted lung injury associated pneumothorax/pneumomediastinum is a risk factor for worse outcomes of severe COVID-19: a case-control study

Variable

Classification criteria

Model 1

Model 2

Model 3

Model 4

Adjusted OR

95% CI

P value

Adjusted OR

95% CI

P value

Adjusted OR

95% CI

P value

Adjusted OR

95% CI

P value

SP/P

No

1.0

  

1.0

  

1.0

  

1.0

  
 

Yes

0.617

0.354–1.076

P = 0.089

0.967

0.505–1.851

P = 0.919

1.662

0.696–3.965

P = 0.252

2.047

0.726–5.775

P = 0.176

  1. Model 1: we did not adjust any confounding factors.
  2. Model 2: we adjusted age, gender, comorbidities, smoking status.
  3. Model 3: we adjusted age, gender, comorbidities, smoking status, oxygen saturation, respiratory rate, respiratory support.
  4. Model 4: we adjusted for model 3 plus systolic pressure, diastolic pressure, pulse, temperature, WBC, lymphocyte, C-reactive protein, time from symptom onset to severe status.
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