Table 3.
Comparison of the nodule categories in UKLS and NELSON including the findings in 8309 nodules that tested negative in NELSON
| Nodule characteristic n (%) | ||||
| NELSON | Benign | <50 mm3 | 50–500 mm3 | Lung cancers on subsequent scan, n (%) |
| 1395 (16.8) | 4861 (58.5) | 2053 (24.7) | 20 (0.24) | |
| Equivalent UKLS categories | Category 1 plus <15 mm3 | Category 2 if >15–49 mm3 | UKLS category 3 | |
The UKLS single screen design required some modification to the nodule classification in NELSON to include more nodules in category 2 (those 15–49 mm3) that were subject to further scanning. Please see table 2 for a full description of UKLS categories.
NELSON, NEderlands-Leuvens longkanker Screenings ONderzoek; UKLS, UK Lung Screen.