Table 1 Patient characteristics.

CR, complete response; PR, partial response; SD, stable disease; PD, progressive disease; WT, wild type; AJCC, American Joint Committee on Cancer.

CharacteristicsTotalEGFR exon 19
deletions
EGFR exon 21 point
mutations
EGFR (WT)Unknown
Patients, n (%)7517 (23%)20 (27%)33 (44%)5 (6%)
Ages (years)
  Median6060606462
  Range45–8047–8045–7845–7845–80
Sex (male/female)34:417:105:1518:154:1
Smoking status
  Ever smoker3389160
  Never smoker42911175
Stage (AJCC)
  I107120
  II31020
  III3059133
  IV32410162
Histology
  Adenocarcinoma661720245
  Squamous cell carcinoma90090
18F-MPG PET/CT
  SUVmax ≥2.23
  SUVmax <2.23
42
33
16
1
16
4
6
27
4
1
TKI therapy response
CR20200
PR31111163
SD112270
PD2723202