Table 4

OR between major histological types of lung cancer and occupational exposure to diesel emissions, pooled studies

ControlsAdenocarcinomaSquamous cell carcinomaSmall cell carcinoma
CasesOR* (95% CI)CasesOR* (95% CI)CasesOR* (95% CI)
Never exposed9552671.00 (ref.)3781.00 (ref.)1921.00 (ref.)
Ever exposed3801070.99 (0.7 to 1.3)2061.67 (1.3 to 2.2)841.29 (0.9 to 1.9)
 Non-substantial level305750.92 (0.7 to 1.3)1471.55 (1.2 to 2.1)581.20 (0.8 to 1.8)
 Substantial level75321.17 (0.7 to 1.9)592.09 (1.3 to 3.2)261.52 (0.8 to 2.7)
Uncertain* exposure97340.91 (0.6 to 1.5)361.02 (0.6 to 1.6)100.50 (0.2 to 1.1)
  • * Adjusted for age, ethnicity, schooling level, socioeconomic status, smoking, respondent status and occupational carcinogens.