Table 2 Clinicopathological features of 343 sporadic NSCLC cases and 280 healthy controls
From: Identification and validation of PROM1 and CRTC2 mutations in lung cancer patients
| Â | Lung cancer | Control |
|---|---|---|
Characteristics | N(%) | N(%) |
Age in years: median | 62.04 ± 10.86 | 59.98 ± 9.65 |
Gender | Â | Â |
  Female | 125(36.44) | 85(30.36) |
  Male | 218(63.56) | 195(69.64) |
Smoking status | Â | Â |
  Never | 68(19.82) | N/A |
  Ever | 107(31.20) | N/A |
  N/A | 168(48.98) | N/A |
Pack years (median, range) | 432(20–732) | N/A |
Histological types | Â | Â |
  Adenocarcinoma | 120(34.98) |  |
  Squamous cell carcinoma | 204(59.48) |  |
  Adenosquamous carcinoma | 8(2.33%) |  |
Others | 11(3.21)a | Â |
Clinical stageb | Â | Â |
  I | 76(22.89) |  |
  II | 58(17.47) |  |
  III | 91(27.41) |  |
  IV | 107(32.23) |  |
Tumor differentiationb | Â | Â |
  Poor | 204(61.44) |  |
  Moderate and poor-moderate | 121(36.45) |  |
  Well and moderate-well | 7(2.11) |  |
Lymph node metastasis | Â | Â |
  Negative | 154(44.90) |  |
  Positive | 189(55.10) |  |