| Mode of lung cancer detection |
Adenocarcinoma (n=69) |
Squamous cell carcinoma (n=47) |
P° |
| Chest X-ray screening* |
|
|
|
| n. of pts |
25 |
16 |
|
| Median TVDT, days |
109 |
80 |
0.0347 |
| (IQR) |
(91-185) |
(56-108) |
|
| Incidental** |
|
|
|
| n. of pts |
44 |
31 |
|
| Median TVDT, days |
227 |
95 |
0.0108 |
| (IQR) |
(108-349) |
(64-230) |
|
| P° (screening vs. incidental) |
0.0099 |
0.2128 |
|
^TVDT calculated according to Schwartz formula [194] after comparison of two consecutive chest X-rays or CT-scans.
°Mann-Whitney test
*Annual repeat screen during population-based chest X-ray screening programme carried out in the Province of Varese, Italy in 1997-2011 [195].
**Asymptomatic subjects with incidental NSCLC detection, for whom previous imaging study was available for tumor size comparisons.
TVDT: Tumor Volume Doubling Time; IQR: Interquartile Range (25%-75%). |
|
