Table 2 The relationship between needle track bleeding and postoperative immediate pneumothorax in the three binary logistic regression models.

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

Exposure

Non-adjusted Model

OR, (95% CI), P-value

Minimally adjusted Model

OR, (95% CI), P-value

Full adjusted Model

OR, (95% CI), P-value

NTB (mm)

0.93 (0.90–0.96) < 0.001

0.92 (0.90–0.95) < 0.001

0.91 (0.88–0.95) < 0.001

NTB quartiles

Q1(0–1.0)

Ref

Ref

Ref

Q2(1.0–4.0)

0.53 (0.31–0.91) 0.021

0.52 (0.29–0.91) 0.021

0.57 (0.31–1.05) 0.070

Q3(4.0–10.0)

0.23 (0.13–0.40) < 0.001

0.19 (0.10–0.35) < 0.001

0.19 (0.09–0.40) < 0.001

Q4(10.0–78.0)

0.15 (0.08–0.27) < 0.001

0.11 (0.06–0.22) < 0.001

0.08 (0.03–0.19) < 0.001

P for trend

 < 0.001

 < 0.001

 < 0.001

  1. Q1, Q2, Q3 and Q4 represent four quartiles of NTB.
  2. NTB needle track bleeding, OR odds ratio, CI confidence intervals, Ref reference, COPD chronic obstructive pulmonary disease.
  3. Non-adjusted Model: not adjusted for any covariates.
  4. Minimally adjusted Model: adjusted for COPD, smoking status, alcohol consumption, systolic and diastolic blood pressure, height, weight, age, sex.
  5. Fully adjusted Model: further adjusted for 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.
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