Level of education | |||||||
Low | Midde | High | |||||
n (%) | OR (CI) | n (%) | OR (CI) | n (%) | OR (CI) | ||
All stages | Planned treatment* | ||||||
Surgery | 318 (16.4) | 1.00 (ref.) | 221 (21.8) | 1.33 (0.98 to 1.81) | 87 (26.8) | 1.93 (1.25 to 3.00) | |
Chemotherapy | 674 (34.8) | 1.00 (ref.) | 458 (45.2) | 1.25 (1.03 to 1.52) | 153 (47.1) | 1.35 (1.00 to 1.81) | |
Radiotherapy | 491 (25.3) | 1.00 (ref.) | 290 (28.6) | 1.12 (0.93 to 1.36) | 82 (25.2) | 0.91 (0.67 to 1.22) | |
No active curative treatment | 403 (20.8) | 1.00 (ref.) | 198 (19.5) | 0.93 (0.58 to 1.49) | 68 (20.9) | 1.63 (0.70 to 3.80) | |
Stage IA–IIB | Planned treatment | ||||||
Surgery | 273 (56.2) | 1.00 (ref.) | 189 (71.1) | 1.53 (1.01 to 2.31) | 72 (80.9) | 2.84 (1.40 to 5.79) | |
Chemotherapy | 74 (15.2) | 1.00 (ref.) | 50 (18.8) | 1.18 (0.78 to 1.80) | 18 (20.2) | 1.31 (0.71 to 2.42) | |
Radiotherapy | 109 (22.4) | 1.00 (ref.) | 58 (21.8) | 1.04 (0.71 to 1.54) | 10 (11.2) | 0.37 (0.17 to 0.82) | |
No active curative treatment | 52 (10.7) | 1.00 (ref.) | 20 (7.5) | 0.77 (0.14 to 4.36) | 7 (7.9) | 0.14 (0.01 to 2.39) | |
Stage IIIA–B | Planned treatment | ||||||
Surgery | 41 (5.8) | 1.00 (ref.) | 21 (6.1) | 0.84 (0.48 to 1.47) | 11 (9.2) | 1.07 (0.52 to 2.23) | |
Chemotherapy | 289 (40.6) | 1.00 (ref.) | 195 (57.2) | 1.64 (1.19 to 2.25) | 72 (60.5) | 1.45 (0.90 to 2.34) | |
Radiotherapy | 240 (33.8) | 1.00 (ref.) | 155 (45.3) | 1.49 (1.10 to 2.01) | 50 (42.5) | 1.19 (0.76 to 1.85) | |
No active curative treatment | 158 (22.2) | 1.00 (ref.) | 66 (19.3) | 1.08 (0.46 to 2.55) | 26 (21.8) | 2.82 (0.55 to 14.49) | |
Stage IV | Planned treatment | ||||||
Surgery | 4 (0.5) | 1.00 (ref.) | 11 (2.7) | 4.21 (1.26 to 14.03) | 4 (3.4) | 6.33 (1.48 to 27.1) | |
Chemotherapy | 311 (42.2) | 1.00 (ref.) | 213 (52.6) | 0.99 (0.71 to 1.37) | 63 (53.8) | 1.41 (0.83 to 2.40) | |
Radiotherapy | 142 (19.2) | 1.00 (ref.) | 77 (19.9) | 0.84 (0.60 to 1.18) | 22 (18.8) | 0.98 (0.57 to 1.66) | |
No active curative treatment | 193 (26.1) | 1.00 (ref.) | 112 (27.7) | 0.91 (0.48 to 1.72) | 35 (29.9) | 1.87 (0.59 to 5.91) |
The ORs with 95% CIs were adjusted for age at diagnosis, sex, histopathology, smoking status and performance status.
↵* The planned treatment was defined as at least surgery, chemotherapy and radiotherapy (without taking into account if a single or a combined treatment was administered).
ref., reference.