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Table 1 Clinicopathological features of patients with recurrent adenocarcinoma of the lung

From: Impact of the epidermal growth factor receptor mutation status on the prognosis of recurrent adenocarcinoma of the lung after curative surgery

Total n = 237  
Mean age, year (range) 66.3 (38–86)
Male, (%) 133 (56.1%)
Surgical procedure, (%)
 pneumonectomy 5 (2.1%)
 lobectomy 228 (96.2%)
 segmentectomy 4 (1.7%)
Pathological stage, (%)
 I 60 (25.3%)
 II 62 (26.2%)
 III 115 (48.5%)
Recurrence pattern, (%)
 locoregional 72 (30.4%)
 systemic 165 (69.6%)
EGFR status, (%)
 mutant 108 (45.6%)
 exon 18 5 (2.1%)
 exon 19 56 (23.6%)
 exon 20 1 (0.4%)
 exon 21 46 (19.4%)
 wild-type 129 (54.4%)
  1. EGFR, epidermal growth factor receptor