Table 4 Logistic regression model using explorative selection criteria with the target parameter "SAE".
From: Systemic air embolism during percutaneous core needle biopsy of the lung: frequency and risk factors
| Â | Model | Selection criteria | Wald | p | Assessment |
|---|---|---|---|---|---|
Needle penetration depth in the tumor (Needle tip not in the tumor is risk factor) | 2 | Explorative | 9.1 | 0.002 | Most important independent risk factor |
Intubation anesthesia (Anesthesia is risk factor) | 2 | Explorative | 6.8 | 0.009 | Independent risk factor |
Height above the level of the left atrium (Height is risk factor) | 2 | Explorative | 6.0 | 0.014 | Independent risk factor |
Needle angle to the tumor surface (More acute angle may be risk factor) | 2 | Explorative | 4.6 | 0.032 | Independent risk factor |
Prone or supine position (prone position is risk factor) | 2 | Explorative | 3.3 | 0.067 | Independent risk factor |
Needle path through ventilated lung | 2 | Explorative | 2.9 | 0.085 | Independent risk factor |