Risk Factors, Characteristics, and Outcome in Non-Ventilated Patients with Spontaneous Pneumothorax or Pneumomediastinum Associated with SARS-CoV-2 Infection.

Model 2 explained about 33% of the mortality risk (Nagelkerke R-square=0.326) and supported the significant risk contribution of age, presence of SP or SPM, and presence of COVID-19. In all three models, the regression coefficient of age remained constant and highly significant: each additional year added a mortality risk of 9.4%; the 95% CI for OR in Model 2 was (1.054–1.135).

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