Table 2.
Treatment received by patients with pure squamous cell carcinoma and pure adenocarcinoma of the esophagus
| Squamous cell carcinoma (n = 2,045) | Adenocarcinoma (n = 5,686) | |
|---|---|---|
| Treatment | No. (%) | No. (%) |
| Neoadjuvant | ||
| Chemoradiotherapy | 1,372 (67) | 4,242 (76) |
| Chemotherapy | 454 (22) | 1,306 (23) |
| Radiotherapy | 211 (10) | 62 (1.1) |
| Unknown | 8 | 76 |
| Resection | ||
| Esophagectomy | 2,045 (100) | 5,686 (100) |
| Less invasive | 56 (2.7) | 350 (6.2) |
| Lymph nodes resected | ||
| 0 | 17 (1.8) | 103 (3.4) |
| 1–5 | 71 (7.4) | 246 (8.1) |
| 6–10 | 147 (15) | 432 (14) |
| 11–20 | 356 (37) | 1,106 (36) |
| 21–30 | 232 (24) | 704 (23) |
| >30 | 131 (14) | 446 (15) |
| Unknown | 1,091 | 2,649 |
| Resection Margin | ||
| R0 | 1,851 (91) | 5,086 (89) |
| R1 | 149 (7.3) | 425 (7.5) |
| R2 | 45 (2.2) | 175 (3.1) |
| Adjuvant | ||
| Chemoradiotherapy | 62 (3.0) | 420 (7.4) |
| Chemotherapy | 210 (10) | 375 (6.6) |
| Radiotherapy | 43 (2.1) | 60 (1.1) |
Treatment received by patients with adenosquamous and undifferentiated carcinoma are shown in Supporting Information Table S2.