Variable | Patients n |
Sex | |
Male | 210 |
Female | 40 |
Age yrs | |
<60 | 89 |
60–65 | 82 |
65–70 | 30 |
≥70 | 49 |
Education level | |
No/primary level | 181 |
Higher education | 59 |
Missing | 10 |
Histology | |
ADC | 133 |
SCC | 110 |
Others | 7 |
Asbestos exposure | |
None | 191 |
Yes | 57 |
Missing | 2 |
pT | |
T1 | 76 |
T2 | 150 |
T3 | 15 |
T4 | 8 |
Missing | 1 |
pN | |
N0 | 173 |
N1 | 65 |
N2 | 2 |
NX | 9 |
Missing | 1 |
Past pulmonary illness | |
No | 110 |
Yes | 138 |
Missing | 2 |
Smoking status# | |
Current smoker | 152 |
Former smoker | 86 |
Never-smoker | 11 |
Missing | 1 |
Total | 250 |
ADC: adenocarcinoma; SCC: squamous cell carcinoma; pT: pathological tumour score; pN: pathological node score. #: former smokers were patients who had quit smoking at least 2 yrs before interview and current smokers were patients who were smokers in the last 2 yrs before interview.