Table 2.

Candidate predictors

Radiographic	Clinical or patient characteristic
Number of nodules annotated	Age at CT scan
Does patient have other relevant nodules	Sex
Were there earlier scans reported negative	Smoking status
Nodule location	Number smoking pack years
Is nodule shape affected by emphysema	Year when stopped smoking
Maximum diameter measured on a 2d axial	Known COPD or emphysema
CT slice	Known coronary artery calcification
	Known pulmonary fibrosis
	Known industrial exposure
	Family history lung cancer