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. 2016 Mar 11;16:210. doi: 10.1186/s12885-016-2249-6

Table 1.

Patient characteristics

Number Total (%)
Age (years) 60.5 [39–76]
gender
 men 27 61.3
 women 17 38.7
Never smokers 7 16
Current and former smokers 32 72.7
unknown 5
Histology
 Adenocarcinoma 41 93
 Squamous cell 3 7
Stage at diagnosis
 I 6 13.7
 II 4 9.1
 III 9 20.4
 IV 25 56.8
Average time between samples (months)
 Synchronous 1.2 (n = 13)
 métachronous 18 (n = 31)