Narrow holiday period number (%) | Wide holiday periods number (%) | ||||
---|---|---|---|---|---|
Variable | Total number (%) | No (%) (n=1447) | Yes (%) (n=206) | No (%) (n=1447) | Yes (%) (n=373) |
Mean age (SD) | 65.1 (9.6) | 65.1 (9.7) | 64.9 (9.0) | 65.1 (9.7) | 65.2 (9.1) |
Charlson comorbidity index | |||||
0 | 1064 (58.5) | 863 (59.6) | 108 (52.4) | 863 (59.6) | 201 (53.9) |
1 | 375 (20.6) | 301 (20.8) | 45 (21.8) | 301 (20.8) | 74 (19.8) |
>1 | 381 (20.9) | 283 (19.6) | 53 (25.7) | 283 (19.6) | 98 (26.3) |
Tumour stage | |||||
0–I | 422 (23.4) | 339 (23.6) | 52 (25.4) | 339 (23.6) | 83 (22.3) |
II | 662 (36.7) | 523 (36.5) | 76 (37.1) | 523 (36.5) | 139 (37.4) |
III–IV | 722 (40.0) | 572 (39.9) | 77 (37.6) | 572 (39.9) | 150 (40.3) |
Tumour histology | |||||
Adenocarcinoma | 792 (43.6) | 639 (44.3) | 83 (40.5) | 639 (44.3) | 153(41.1) |
Squamous cell carcinoma | 1024 (56.4) | 805 (55.7) | 122 (59.5) | 805 (55.7) | 219 (58.9) |
Neoadjuvant therapy | |||||
No | 1231 (67.7) | 986 (68.2) | 131 (63.6) | 986 (68.2) | 245 (65.7) |
Yes | 587 (32.3) | 459 (31.8) | 75 (36.4) | 459 (31.8) | 128 (34.3) |
Cumulative surgeon volume | |||||
≤6 | 1108 (63.0) | 880 (62.8) | 127 (64.8) | 880 (62.8) | 228 (63.5) |
7–16 | 569 (32.3) | 455 (32.5) | 60 (30.6) | 455 (32.5) | 114 (31.8) |
17–46 | 83 (4.7) | 66 (4.7) | 9 (4.6) | 66 (4.7) | 17 (4.7) |
Calendar period | |||||
1987–1999 | 992 (54.5) | 790 (54.6) | 112 (54.4) | 790 (54.6) | 202 (54.2) |
2000–2010 | 828 (45.5) | 657 (45.4) | 94 (45.6) | 657 (45.4) | 171 (45.8) |
Patients who underwent surgery during the narrow holiday period were compared with patients outside the narrow holiday period and with those outside the wide holiday period.