Table 1

The clinical and pathological characteristics of patients and their tumors

Early recurrenceNo recurrence
Total number of patients2415
Mean age (range)65 (43–73)64 (42–78)
Sex
 Male139
 Female116
Mean follow-up (months)2624
Stage
 I (1A and 1B)810
 II (2A and 2B)132
 III (3A)33
Histological type
 ADC118
 SQCC104
 Othersa33
  • a Includes adenosquamous carcinoma (ADSQ), large cell undifferentiated carcinoma (LCUC), and carcinoid tumor (CND).