Table 1. Patient characteristics.
| Characteristics | n | % |
|---|---|---|
| Age (years) (median (range)) |
66 (47–74) |
|
| Sex | ||
| Male | 41 | 85 |
| Female | 7 | 15 |
| Performance status (ECOG) | ||
| 0 | 28 | 58 |
| 1 | 20 | 42 |
| Histology | ||
| SCC | 47 | 98 |
| Basaloid carcinoma | 1 | 2 |
| Location of primary tumour in oesophagus | ||
| Upper | 13 | 27 |
| Middle | 33 | 69 |
| Lower | 2 | 4 |
| Macroscopic classification of primary lesion | ||
| 1 | 5 | 10 |
| 2 | 29 | 60 |
| 3 | 12 | 25 |
| 0-IIb | 1 | 2 |
| 0-IIa+0-IIc | 1 | 2 |
| Clinical TNMa | ||
| T3 | 5 | 10 |
| T4a | 1 | 2 |
| T4b | 42 | 88 |
| N0 | 4 | 8 |
| N1 | 12 | 25 |
| N2 | 22 | 46 |
| N3 | 10 | 21 |
| M0 | 39 | 81 |
| M1 | 9 | 19 |
| Stage 3c | 39 | 81 |
| Stage 4 | 9 | 19 |
Abbreviations: ECOG=Eastern Cooperative Oncology Group; SCC=squamous cell carcinoma; TNM=Tumour, Node, Metastasis.
a
TNM were recorded in accordance with UICC seventh edition.