Table 3

 Lung nodules: subject characteristics and test performance

NodulesTotal*Diagnosed†
C, current; Fo, former; N, never; NA, not available.
*The total number of subjects with indeterminate nodules who participated.
†Those with a diagnosis at the time of manuscript preparation.
Number2921
Benign:cancer:unknown20:1:820:1
Female:male16:1311:10
Smoking (C:Fo:N)3:18:82:13:6
Mean (range) age (years)63.6 (45–86)61.6 (47–86)
Prior cancer (%)2119
Maximal (range) diameter (mm)12 (3–27)11.2 (3–27)
Sensitivity–specificity (%)NA100–60