Table 3

Association of education and occupation with head and neck cancer according to the hierarchical model and the fully-adjusted models (1017 cases and 951 controls)

Socioeconomic statusHierarchical modelFully adjusted
OR (95% CI)*OR (95% CI)
Education
 >8 years1.001.00
 4 to 8 years1.23 (0.99 to 1.53)0.95 (0.73 to 1.23)
 <4 years2.27 (1.61 to 3.19)1.58 (1.06 to 2.36)
Occupation
 Non-manual (I, II, IIIN)1.001.00
 Manual (IIIM, IV, V)1.55 (1.26 to 1.92)1.30 (1.01 to 1.66)
  • * OR and 95% CI, as adjusted by sex and age, as assessed by unconditional logistic regression.

  • OR and 95% CI, as adjusted by sex, age and proximal exposures (smoking and alcohol drinking), as assessed by unconditional logistic regression.

  • Classified according to the British Registrar.10