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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)*      
    0 1.0 1.2 (0.8-1.7) 1.4 (1.0-2.1) 1.7 (1.1-2.6) 3.5 (2.2-5.5) 
    >0-6 0.7 (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) 
    >6-11 0.9 (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) 
    >11-26 1.4 (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) 
    >26 1.8 (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) 
TermsTobacco (pack-years)*
0>0-15>15-35>35-58>58
Alcohol (drinks/wk)*      
    0 1.0 1.2 (0.8-1.7) 1.4 (1.0-2.1) 1.7 (1.1-2.6) 3.5 (2.2-5.5) 
    >0-6 0.7 (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) 
    >6-11 0.9 (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) 
    >11-26 1.4 (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) 
    >26 1.8 (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.

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