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. 2015 Apr 14;9(6):2095–2103. doi: 10.3892/etm.2015.2422

Table I.

Summary of clinical factors and gene mutation status.

Variables Cases, n (%)
Median age, years (range) 58 (36–76)
Gender
  Male 130 (61.3)
  Female 82 (38.7)
Smoking history
  Never 97 (45.8)
  Formera/current 115 (54.3)
Pathological diagnosis
  AIS 44 (20.8)
  MIA 62 (29.2)
  IAC 106 (50.0)
Image patterns
  pGGO 83 (39.2)
  mGGO 61 (28.8)
  sGGO 68 (32.0)
EGFR mutation status
  Wild type 134 (63.2)
  L858R 34 (16.0)
  Exon 19 deletion 39 (18.4)
  Others 5 (2.4)
KRAS mutation status
  Wild type 194 (91.5)
  Mutation 18 (8.5)
a

Patients who had quit smoking ≥1 year prior to the surgery were defined as former smokers. AIS, adenocarcinoma in situ; MIA, minimally invasive adenocarcinoma; IAC, invasive adenocarcinoma; GGO, ground-glass opacity; p, pure; m, mixed; s, solid; EGFR, epidermal growth factor receptor; KRAS, Kirsten rat sarcoma.