Table 2a. Characteristics of patients undergoing surgery.
| Characteristics | Surgery n = 355 Frequency (%) |
Patients <70 years n = 232 Frequency (%) |
Patients ≥70 years n = 123 Frequency (%) |
p-value |
|---|---|---|---|---|
| Female | 161 (45%) | 108 (47%) | 53 (43%) | 0.58 |
| Site | 0.21 | |||
| Distal Bile Duct | 101 (28%) | 62 (27%) | 39 (32%) | |
| Gallbladder | 103 (29%) | 62 (27%) | 41 (33%) | |
| Intrahepatic | 72 (20%) | 51 (22%) | 21 (17%) | |
| Perihilar | 79 (22%) | 57 (25%) | 22 (18%) | |
| ECOG PS | 0.28 | |||
| <2 | 338 (97%) | 223 (98%) | 115 (96%) | |
| ≥2 | 9 (3%) | 4 (2%) | 5 (4%) | |
| Missing | 8 | 5 | 3 | |
| Stage | 0.82 | |||
| I | 97 (27%) | 66 (29%) | 31 (25%) | |
| II | 130 (37%) | 82 (36%) | 48 (39%) | |
| III | 91 (26%) | 58 (25%) | 33 (27%) | |
| IV | 36 (10%) | 25 (11%) | 11 (9%) | |
| Missing | 1 | 1 | 0 | |
| CCI | 0.04 | |||
| 0 | 233 (66%) | 160 (70%) | 73 (60%) | |
| 1 | 68 (19%) | 44 (19%) | 24 (20%) | |
| ≥2 | 50 (14%) | 25 (11%) | 25 (20%) | |
| Missing | 4 | 3 | 1 | |
| Adjuvant Chemotherapy | 0.08 | |||
| Adjuvant Chemotherapy | 74 (21%) | 57 (25%) | 17 (14%) | |
| Concurrent Chemotherapy / Radiation | 21 (6%) | 14 (6%) | 7 (6%) | |
| No Adjuvant Chemotherapy | 260 (73%) | 161(69%) | 99 (80%) |
Abbreviations: ECOG PS: European Cooperative Oncology Group Performance Status; CCI: Charlson Co-morbidity index