Table 3 The results of the two piecewise linear regression models.

From: Association between needle track bleeding and postoperative immediate pneumothorax in CT-guided percutaneous transthoracic lung biopsies: a cross-sectional study

Outcome

OR (95% CI) P-value

Fitting by standard linear regression

0.91 (0.88–0.95) < 0.001

Fitting by two-piecewise linear regression

Inflection point (mm)

8

 ≤ 8

0.74 (0.66–0.81) < 0.001

 > 8

0.98 (0.95–1.02) 0.428

P for log-likelihood ratio test

 < 0.001

  1. OR odds ratio, CI confidence intervals, COPD chronic obstructive pulmonary disease.
  2. Adjusted for COPD, smoking status, alcohol consumption, systolic and diastolic blood pressure, height, weight, age, sex, operator's experience, patient's puncture position, lesion located in lung, lesion located in lobes, lesion diameter, puncture needle gauge, transpulmonary needle path length, number of pleural punctures, entire needle path length, number of needle redirections, operation duration, pathological results, and needle path CT attenuation values, needle-pleura angle, puncture through interlobar fissure.
Back to article page