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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2012 Oct 2;21(12):2138–2148. doi: 10.1158/1055-9965.EPI-12-0835

Figure 1. Cross-classification of smoking and processed meat intake.

Figure 1

Multivariable-adjusted relative risks and 95% CI for the joint effect of processed meat intake and smoking status on the association of upper aero-digestive tract cancer in EPIC. RRs were adjusted for sex, energy from fat and non-fat sources, education, alcohol intake, BMI, physical activity, intake of citrus and non-citrus fruits, and vegetables, red meat, and poultry (non-smoking participants in the lowest category of processed meat intake constitute the reference group). Note that the RRs (Y axis) are plotted on a logarithmic scale.