Level of education | ||||
Low | Middle | High | Total | |
n (%) | n (%) | n (%) | n | |
Total number | 2001 (100) | 1039 (100) | 329 (100) | 3369 |
Sex | ||||
Male | 1185 (59.2) | 582 (56.0) | 197 (59.9) | 1964 |
Female | 816 (40.8) | 457 (44.0) | 132 (40.1) | 1405 |
Age at diagnosis | ||||
<70 | 877 (43.8) | 659 (63.0) | 208 (63.2) | 1744 |
≥70 | 1124 (56.2) | 380 (37.0) | 121 (36.8) | 1625 |
Year of diagnosis | ||||
1996–1999 | 876 (43.8) | 426 (41.0) | 128 (38.9) | 1430 |
2000–2004 | 1125 (56.2) | 613 (59.0) | 201 (61.1) | 1939 |
Smoking status | ||||
Smoker | 878 (45.5) | 510 (50.2) | 121 (37.5) | 1509 |
Ex-smoker | 833 (43.2) | 408 (40.2) | 142 (44.0) | 1383 |
Never smoked | 219 (11.3) | 98 (9.6) | 60 (18.6) | 377 |
Performance status (PS)* | ||||
PS 0–1 | 1073 (56.1) | 638 (63.5) | 222 (69.8) | 1933 |
PS 2 | 478 (25.0) | 246 (24.5) | 62 (19.5) | 786 |
PS 3–4 | 360 (18.8) | 121 (12.0) | 34 (10.7) | 515 |
Mode of detection | ||||
Bronchoscopy | 1603 (79.1) | 872 (82.0) | 272 (76.8) | 2747 |
CT thorax | 1783 (88.0) | 965 (90.7) | 310 (87.6) | 3058 |
US/CT upper abdomen | 1656 (81.7) | 908 (85.3) | 292 (82.5) | 2856 |
Mediastinoscopy | 118 (5.8) | 65 (6.1) | 22 (6.2) | 205 |
Other† | 905 (44.7) | 516 (48.5) | 165 (46.6) | 1586 |
At least bronchoscopy, CT thorax and US/CT | 1358 (67.0) | 775 (72.8) | 247 (69.8) | 2380 |
At least bronchoscopy and CT thorax | 1496 (73.8) | 827 (77.7) | 263 (74.3) | 2586 |
Stage at diagnosis | ||||
IA–IIB | 486 (25.1) | 266 (26.3) | 89 (27.5) | 841 |
IIIA–IIIB | 710 (36.7) | 341 (33.7) | 118 (36.4) | 1169 |
IV | 740 (38.2) | 405 (40.0) | 117 (36.1) | 1262 |
↵* WHO PS (0, 1, fully active or symptomatic but completely ambulatory; 2, symptomatic, <50% in bed during the day; 3, 4, symptomatic >50% in bed during the day or bedbound, completely disabled).
↵† Other includes: positron emission tomography scan of thorax, thoracoscopy, thoracocentesis, transthoracal biopsy and CT or MRI of the brain.
US, ultrasound.