Table 1—

Composition of groups

NonsmokersSmokers
Nl nsNl NflNl HfHMMiDMoDSDCISSQCC
Stage0123456789
Group01112223A#3A#3B#
  • Nl ns: normal of nonsmokers; Nl Nfl: normal in normofluorescent area; Nl Hf: normal in hypofluorescent area; H: hyperplasia; M: metaplasia; MiD: mild dysplasia; MoD: moderate dysplasia; SD: severe dysplasia; CIS: carcinoma in situ; SQCC: squamous cell carcinoma. Stages 0 to 9 were assembled in larger groups of samples according to transcriptomic analyses performed on the same samples, thereby increasing the power of statistical tests. #: subdivision of group 3.