Table 1 Population characteristics and univariate analysis on the association between population characteristics and 4 areas of treatment
Characteristics | Total (N = 1392) | High-risk areaa Limoges (N = 266) | Medium-risk areab Nancy (N = 467) | Low-risk areac Reims (N = 407) | Very-low-risk aread Amiens (N = 252) | P-value |  | |
|---|---|---|---|---|---|---|---|---|
Age (years), median (inter-quartile) | 63.0 (56–70) | 64.5 (57–72) | 62.0 (55–68) | 63.0 (56–71) | 63.0 (58–70) | 0.0064 |  | |
Sex | Â | Â | Â | Â | Â | Â | Â | |
| Â | Male, N (%) | 1091 (78.4) | 199 (74.8) | 368 (78.8) | 329 (80.8) | 195 (77.4) | NS | Â |
| Â | Female, N (%) | 301 (21.6) | 67 (25.2) | 99 (21.2) | 78 (19.2) | 57 (22.6) | NS | Â |
Primary cancer locations | Â | Â | Â | Â | Â | Â | Â | |
| Â | HNSCC, N (%) | 958 (68.8) | 159 (59.8) | 330 (70.7) | 283 (69.5) | 186 (73.8) | 0,003 | Â |
|  | Colorectal, N (%) | 347 (24.9) | 99 (37.2) | 114 (24.4) | 79 (19.4) | 55 (21.8) | < 10− 4 |  |
| Â | CSCC, N (%) | 65 (4.7) | 7 (2.6) | 8 (1.7) | 44 (10.8) | 6 (2.4) | NS | Â |
| Â | Cervical, N (%) | 2 (0.1) | 0 | 0 | 1 (0.3) | 1 (0.4) | NS | Â |
| Â | Other, N (%) | 20 (1.4) | 1 (0.4) | 15 (3.2) | 0 | 4 (1.6) | NS | Â |
Premedications | Â | Â | Â | Â | Â | Â | Â | |
| Â | Corticosteroids alone, N (%) | 19 (1.4) | 1 (0.4) | 1 (0.2) | 15 (3.7) | 2 (0.8) | NS | Â |
| Â | H1A alone, N (%) | 11 (0.8) | 0 | 4 (0.9) | 7 (1.7) | 0 | NS | Â |
|  | Corticosteroids + H1A, N (%) | 1361 (97.8) | 265 (99.6) | 462 (98.9) | 384 (94.6) | 250 (99.2) | < 10− 4 |  |
Types of chemotherapy | Â | Â | Â | Â | Â | Â | Â | |
| Â | Monotherapy, N (%) | 49 (3.5) | 11 (4.1) | 5 (1.1) | 32 (7.9) | 1 (0.4) | NS | Â |
| Â | Polychemotherapy, N (%) | 911 (65.5) | 205 (77.1) | 335 (71.7) | 198 (48.6) | 173 (68.6) | NS | Â |
| Â | Concomittant radiotherapy, N (%) | 432 (31) | 50 (18.8) | 127 (27.2) | 177 (43.5) | 78 (31) | NS | Â |