The impact of lung parenchyma attenuation on nodule volumetry in lung cancer screening

Insights into Imaging

Table 4 Parameter estimates for the prediction of nodule segmentation success and adequacy

Variable	OR	95% CI	p	Effect size
‘Average of long and short diameters’	1.558	1.350–1.797	***< 0.001	0.006
Volume	0.984	0.982–0.986	***< 0.001	0.033
‘Mean attenuation of the adjacent lung parenchyma’	0.987	0.985–0.988	***< 0.001	0.195
Previous lung surgery	3.414	1.575–7.401	**0.002	0.000
Pleural plaques	0.593	0.414–0.849	**0.004	0.002

OR, odds ratio; CI, confidence interval; ***p < 0.001; **p < 0.01
ILA, interstitial lung abnormality; ILD, interstitial lung disease; COPD, chronic obstructive pulmonary disease