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Table 4 Causes of treatment failure in different groups

From: Unresected small lymph node assessment predicts prognosis for patients with pT3N0M0 thoracic esophageal squamous cell carcinoma

No. of patients experiencing failure (%)
Disease recurrence CT-suspect group (n=84) CT-negative group (n=210) χ2 value P value
Total   50 (59.5%) 77 (36.7%) 12.775 <0.001*
Local   40 (47.6%) 53 (25.2%) 13.897 <0.001*
  Sup.LN 19 (22.6%) 10 (4.8%) 21.519 <0.001*
  Med.LN 17 (20.2%) 37 (17.6%) 0.274 0.600
  Abd.LN 5 (6%) 5 (2.4%) 1.369 0.155
  Tumor bed 2 (2.4%) 4 (1.9%) 0.000 1.000
  Ana 4 (4.8%) 2 (1.0%) 2.658 0.058
Metastasis   18 (21.4%) 35 (16.7%) 0.921 0.337
  1. CT computed tomography; Sup supraclavicular; Med mediastinal; Abd abdominal; Ana anastomotic; LN lymph node
  2. *P value < 0.05