Table 1.
Clinicopathologic characteristics of patients with NSCLC and healthy controls
| |
No. of patients or controls |
|
|
|---|---|---|---|
| Characteristics | Case (n) | Controls (n) | P |
| No. |
360 |
360 |
|
| Age, y |
|
|
>0.05 |
| Median |
57.2 |
56.3 |
|
| Range |
24-81 |
23-87 |
|
| Gender |
|
|
>0.05 |
| Male |
199 |
197 |
|
| Female |
161 |
163 |
|
| Smoking status |
|
|
<0.01 |
| Never |
210 |
258 |
|
| Former |
56 |
43 |
|
| Current |
94 |
59 |
|
| KPS |
|
- |
- |
| ≥80 |
289 |
- |
|
| <80 |
71 |
- |
|
| Histology |
|
- |
|
| Squamous carcinoma |
213 |
- |
|
| Adenocarcinoma |
111 |
- |
|
| Others |
36 |
- |
|
| Tumor stage at diagnosis |
|
- |
|
| I |
81 |
- |
|
| II |
96 |
- |
|
| III |
82 |
- |
|
| IV |
101 |
-- |
|
| Lymph node |
|
-- |
|
| Positive |
223 |
- |
|
| Negative |
137 |
- |
|
| Bone metastasis |
|
- |
|
| Yes |
79 |
- |
|
| No | 281 | - | |
Note: For the smoking status, classification for tobacco consumption is never (<100 cigarettes lifetime), former (> 100 cigarettes lifetime and quit >12 months prior) and current.