Table 2.

Interaction of tobacco and alcohol on HNSCC risk ORs and 95% CIs

TermsTobacco (pack-years)*
0>0-15>15-35>35-58>58
Alcohol (drinks/wk)*
    01.01.2 (0.8-1.7)1.4 (1.0-2.1)1.7 (1.1-2.6)3.5 (2.2-5.5)
    >0-60.7 (0.5-1.0)0.8 (0.5-1.3)1.0 (0.6-1.7)1.1 (0.6-2.0)2.3 (1.3-4.2)
    >6-110.9 (0.6-1.4)1.1 (0.6-1.9)1.3 (0.8-2.4)1.6 (0.9-2.9)3.2 (1.8-5.9)
    >11-261.4 (0.9-2.1)1.6 (0.9-2.8)2.0 (1.2-3.4)2.4 (1.4-4.2)4.9 (2.7-8.8)
    >261.8 (1.1-3.1)2.1 (1.1-4.0)2.6 (1.4-4.8)6.5 (3.2-13.0)17.3 (7.8-38.3)
  • NOTE: Adjusted for age, gender, and race.

  • * Categories determined by quartiles among all exposed individu als.