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Table 5 Multivariable logistic regression model for predictors of pneumothorax in all patients studied

From: The role of clinical characteristics and pulmonary function testing in predicting risk of pneumothorax by CT-guided percutaneous core needle biopsy of the lung

Multivariable Predictors* All patients (PTX = 50, without PTX = 293)
VIF Odds Ratio 95% CI P value
Location of lesion 1.026 2.150 1.124–4.113 0.021
Presence of emphysema 1.151 5.217 2.286–11.901 8.700 × 10–5
Dwell time (s) 1.021 1.001 0.999–1.003 0.217
FEV1/FVC ratio (%) 2.133 0.995 0.938–1.056 0.865
FEF50% 2.574 0.984 0.995–1.015 0.307
FEF75% 2.168 1.012 0.987–1.037 0.349
FEF25–75% 1.875 1.000 0.965–1.036 0.994
  1. Significant difference (P<0.05) are shown in bold
  2. VIF variance inflation factor
  3. *Logistic regression model only included significant covariates from univariate analysis