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Table 1 Demographics of patient cohort (N = 128)

From: Detection of disseminated tumor cells in lymph nodes from patients with early stage non-small cell lung cancer

Parameter   Patients
   N %
Sex Male 71 56
  Female 57 44
Age at surgery <65 years 52 41
  > 65 years 76 59
Histology Adenocarcinoma 73 57
  Squamous cell carcinoma 50 39
  Large cell carcinoma 5 4
UICC stage / pTNM7 I 77 60
  II 34 27
  III 13 10
  IV 4 3
pT pT1 41 32
  pT2 61 48
  pT3 25 19
  pT4 1 1
pN pN0 102 80
  pN1 18 14
  pN2 8 6
Tumour size (cm) ≤ 2.0 cm 32 25
  2.1–3.0 cm 27 21
  3.1–5.0 cm 46 36
  5.1–7.0 cm 10 8
  >7.0 cm 13 10
Tobacco use Current smoker 77 60
  Former smoker 46 36
  Never smoker 6 5