Table 2

Distribution of the NQO1 polymorphism among lung cancer patients and controls by histological cell types

Histological cell typenNQO1 polymorphism (%)
Cancer patientsd8142.93265
 Squamous carcinoma2174.23561
  • a Homozygous variant

  • b Heterozygous.

  • c Homozygous wild type.

  • d 154 individuals had missing histological cell type data.

  • e Other refers to large cell, small cell, and mixed lung cancer histological subtypes.