Overview of intranodular diameter variation* in baseline nodules per nodule volume category
| Volume 50–100 mm3 | Volume 100–200 mm3 | Volume 200–300 mm3 | Volume 300–400 mm3 | Volume 400–500 mm3 | |
| n (%) | 1423 (63.5) | 550 (24.6) | 159 (7.1) | 68 (3.0) | 40 (1.8) |
| Median diameter variation (mm) | 2.7 | 3.1 | 3.3 | 4.0 | 4.2 |
| IQR (mm) | 2.2–3.3 | 2.3–4.0 | 2.4–4.3 | 2.7–5.6 | 3.2–6.0 |
| Diameter variation range (mm) | 0.6–12.3 | 0.2–10.6 | 1.5–12.6 | 1.3–11.8 | 2–11.3 |
| Variation ≥2 mm, n (%)† | 1174 (82.5) | 484 (88.0) | 143 (89.9) | 62 (91.2) | 40 (100) |
*Intranodular diameter variation was defined as maximum nodule diameter (in any direction) minus minimum nodule diameter (in any direction) through the nodule’s centre, as determined by LungCARE.
†The intranodular diameter variation of at least 2 mm refers to the difference in nodule diameter of 2 mm between LungRads categories 2, 3 and 4A.1