Table 2.
Baseline characteristics of patients
| Characteristic (n) (%) | All population (n = 18) | Surgery-only group (n = 9) | Chemo-/radiotherapy group (n = 9) |
|---|---|---|---|
| Sex | |||
| Male | 12/18 (66) | 4/9 (44) | 8/9 (88) |
| Female | 6/18 (34) | 5/9 (56) | 1/9 (12) |
| Age,a (years) | 60.24 (±12.99) | 62.51 (±9.96) | 57.97 (±15.75) |
| Tumour site | |||
| Oesophagus | 14/18 (78) | 7/9 (78) | 7/9 (78) |
| Upper | 1/18 (6) | 1/9 (12) | – |
| Middle | 8/18 (44) | 3/9 (33) | 5/9 (56) |
| Lower | 5/18 (28) | 3/9 (33) | 2/9 (22) |
| Siewert I | 4/18 (22) | 2/9 (22) | 2/9 (22) |
| Pathological T stageb | |||
| T1 | 8/18 (44) | 7/9 (76) | 1/9 (12) |
| T2 | 4/18 (22) | 1/9 (12) | 3/9 (33) |
| T3 | 5/18 (28) | 1/9 (12) | 4/9 (43) |
| T4 | 1/18 (6) | – | 1/9 (12) |
| Pathological N stageb | |||
| N0 | 14/18 (78) | 8/9 (88) | 6/9 (67) |
| N+ | 4/18 (22) | 1/9 (12) | 3/9 (33) |
| Histology | |||
| Adenocarcinoma | 7/18 (39) | 3/9 (33) | 4/9 (44) |
| Squamous cell carcinoma | 11/18 (61) | 6/9 (67) | 5/9 (56) |
| Grade | |||
| 1 | 1/18 (6) | 1/9 (11) | – |
| 2 | 12/18 (66) | 5/9 (56) | 7/9 (78) |
| 3 | 5/18 (28) | 3/9 (33) | 2/9 (22) |
| ADC (×10−3 mm2 s−1)a | 1.60 (±0.50) | 1.90 (±0.46) | 1.30 (±0.34) |
| SUV (g cm−3)a,c | 11.71 (±5.58) | 8.81 (±5.58) | 13.97 (±4.69) |
ADC, apparent diffusion coefficient; SUV, standardized uptake value.
a
Data in parentheses are percentages, except for age, ADC and SUV showing standard deviation.
b
According to the seventh TNM edition.
c
Data available for 16 patients.