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Table 1 Patient characteristics

From: Radiofrequency ablation of stage IA non–small cell lung cancer in patients ineligible for surgery: results of a prospective multicenter phase II trial

  Population n = 42 Eligible population n = 36 Eligible and assessable population n = 32
Men 29 23 21
Women 13 13 11
Mean Age (years) 71.7 72.8 72.7
ECOG Status
 0 11 10 9
 1 23 20 17
 2 1 0 0
 Non-documented 7 6 6
Smoking
 No 5 5 5
 Yes 23 18 16
 Non-documented 14 13 11
Histological analysis
 Squamous cell carcinoma 10 9 8
 Adenocarcinoma 26 23 21
 Large cell carcinoma 4 3 3
 Undifferentiated non-small cell 1 1 0
 Neuroendocrine 1 0 0
Tumor size (mm)
 Max. 37 29 29
 Min. 13 13 13
 Average 21.1 20.4 20.7
 STD 6.34 5.04 5.0
Tumor stage
 T1a 24 (57%) 21 (58%) 18 (56%)
 T1b 15 (36%) 15 (42%) 14 (44%)
 T2 3 (7%) 0 (0%) 0 (0%)