Table 1. Baseline clinical characteristics of patients with postoperative locoregional recurrence of oesophageal squamous cell carcinoma.
| Variable | n (%) |
|---|---|
| Gender | |
| Male | 20 (74.1) |
| Female | 7 (25.9) |
| Age (year) | |
| Median (range) | 55 (42–75) |
| <60 | 20 (74.1) |
| ≥60 | 7 (25.9) |
| ECOG PS | |
| 0–1 | 17 (63.0) |
| 2 | 10 (37.0) |
| BMI (kg/m2) | |
| <18.5 | 8 (29.6) |
| ≥18.5 | 19 (70.4) |
| CCI | |
| 0 | 17 (63.0) |
| 1–2 | 10 (37.0) |
| Smoking status | |
| Former or current smoker | 15 (55.6) |
| Non-smoker | 12 (44.4) |
| Drinking | |
| No | 15 (55.6) |
| Yes | 12 (44.4) |
| Primary tumor location | |
| Upper | 3 (11.1) |
| Middle | 21 (77.8) |
| Lower | 3 (11.1) |
| TNM Stage of primary tumora | |
| Ia, Ib | 2 (7.4) |
| IIa, IIb | 10 (37.0) |
| IIIa, IIIb | 15 (55.6) |
| Histology of primary tumor | |
| Grade 1–2 | 23 (85.2) |
| Grade 3–4 | 4 (14.8) |
| Primary radical surgery | |
| Two-incision oesophagectomy | 10 (37.0) |
| Three-incision oesophagectomy | 17 (63.0) |
| Adjuvant chemotherapy after surgery | |
| No | 14 (48.1) |
| Yes | 13 (51.9) |
| Time to recurrence after initial treatment | |
| Median (range, month) | 17 (4–132) |
| ≥1 year | 18 (66.7) |
| <1 year | 9 (33.3) |
| Recurrence site | |
| Anastomosis with/without lymphadenopathy | 9 (33.3) |
| Supraclavicular and/or regional lymph node | 18 (66.7) |
Abbreviations: BMI = body mass index; CCI = Charlson comorbidity index; ECOG PS = the Eastern Cooperative Oncology Group Performance Status Scale;
aTNM stage was according to the 7th edition of the American Joint Commission on Cancer (AJCC) staging system.