Table 1.

Clinical characteristics of adenocarcinoma patients in the prognostic gene expression cohorts

Discovery cohortsValidation cohorts
GSE31210 (16)Chitale U133A (22)Chitale U133 2plus (22)E-MTAB-923 (21)GSE13213 (15)GSE42127 (13)GSE3141 (24)Shedden (14)
Total no. of patients2269110210311713358356
Gender
 Male1054142166068189
 Female1215060875765166
Smoking status
 Never-smokers1151719635633
 Smokers11173834061229
Mutation status
EGFR-mutated12715244945
KRAS-mutated2011361715
 EGFRwt/KRASwt7965423357
Stage
 I1685370607989224
 II58201010132277
 III0181733252051
 IV0050010
ACTa226/0UnknownUnknown52/33117/094/39Unknown172/62
Median follow-up, years53.51.53.65.63.82.54
PlatformAffymetrix U133 2plusAffymetrix U133AAffymetrix U133 2plusAffymetrix U133 2plusAgilent 44KIllumina WG6 V3Affymetrix U133 2plusAffymetrix U133A
  • aACT, number of untreated/treated patients.