Skip to Main Content
Table 3.

Tuibur (tobacco smoke–infused water) and risk of stomach cancer

HabitsCasesControlsUnivariate*, OR (95% CI)Multivariate, adjusted OR (95% CI)
Tuibur status     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    Former user 37 46 1.9 (1.1-2.8) 1.3 (0.4-2.1) 
    Current user 56 55 2.4 (1.5-3.4) 2.1 (1.3-3.1) 
Frequency/d     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    <5 17 28 1.3 (0.4-4.0) 1.1 (0.2-7.2) 
    5-10 48 55 1.7 (0.3-7.4) 1.3 (0.4-8.2) 
    >10 28 18 3.3 (1.6-10.7) 2.8 (1.1-11.7) 
    Ptrend < 0.001     
Age began (y)     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    ≤19 23 19 3.4 (1.8-16.5) 2.7 (1.3-15.6) 
    20-29 25 21 2.2 (0.6-12.7) 1.5 (0.6-6.4) 
    ≥30 45 61 1.7 (0.3-8.6) 1.2 (0.8-7.3) 
    Ptrend < 0.0001     
Duration (y)     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    ≤15 20 26 1.8 (0.6-4.8) 1.4 (0.05-7.9) 
    16-30 45 50 2.7 (1.4-6.6) 1.7 (0.3-8.4) 
    >30 28 25 3.6 (1.7-11.2) 2.4 (1.1-10.5) 
    Ptrend < 0.0001     
Years since stopped     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    <10 15 12 2.4 (1.24-8.54) 1.9 (1.1-6.2) 
    10-20 18 27 1.6 (0.4-5.27) 0.5 (0.02-6.1) 
    >20 21 1.1 (0.1-4.98) 0.2 (0.07-7.2) 
    Trend test not significant     
Cumulative dose to amount of tuibur (ml)     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    <1,000 45 57 1.8 (0.7-5.2) 0.7 (0.05-8.2) 
    1,000-2,000 24 27 2.1 (1.1-9.2) 1.3 (0.5-7.5) 
    >2000 24 17 3.3 (1.7-9.2) 2.1 (1.7-8.6) 
    Ptrend < 0.001     
HabitsCasesControlsUnivariate*, OR (95% CI)Multivariate, adjusted OR (95% CI)
Tuibur status     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    Former user 37 46 1.9 (1.1-2.8) 1.3 (0.4-2.1) 
    Current user 56 55 2.4 (1.5-3.4) 2.1 (1.3-3.1) 
Frequency/d     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    <5 17 28 1.3 (0.4-4.0) 1.1 (0.2-7.2) 
    5-10 48 55 1.7 (0.3-7.4) 1.3 (0.4-8.2) 
    >10 28 18 3.3 (1.6-10.7) 2.8 (1.1-11.7) 
    Ptrend < 0.001     
Age began (y)     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    ≤19 23 19 3.4 (1.8-16.5) 2.7 (1.3-15.6) 
    20-29 25 21 2.2 (0.6-12.7) 1.5 (0.6-6.4) 
    ≥30 45 61 1.7 (0.3-8.6) 1.2 (0.8-7.3) 
    Ptrend < 0.0001     
Duration (y)     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    ≤15 20 26 1.8 (0.6-4.8) 1.4 (0.05-7.9) 
    16-30 45 50 2.7 (1.4-6.6) 1.7 (0.3-8.4) 
    >30 28 25 3.6 (1.7-11.2) 2.4 (1.1-10.5) 
    Ptrend < 0.0001     
Years since stopped     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    <10 15 12 2.4 (1.24-8.54) 1.9 (1.1-6.2) 
    10-20 18 27 1.6 (0.4-5.27) 0.5 (0.02-6.1) 
    >20 21 1.1 (0.1-4.98) 0.2 (0.07-7.2) 
    Trend test not significant     
Cumulative dose to amount of tuibur (ml)     
    Non-user 236 557 1.0 (reference) 1.0 (reference) 
    <1,000 45 57 1.8 (0.7-5.2) 0.7 (0.05-8.2) 
    1,000-2,000 24 27 2.1 (1.1-9.2) 1.3 (0.5-7.5) 
    >2000 24 17 3.3 (1.7-9.2) 2.1 (1.7-8.6) 
    Ptrend < 0.001     
*

Matched (cases and controls were matched for age and sex) univariate OR estimated by conditional logistic regression analysis.

Adjusted ORs (adjusted for alcohol drinking, chewing, smoking, level of education, occupation, and income group) obtained by matched conditional multiple logistic regression analysis using maximum likelihood approach.

Close Modal

or Create an Account

Close Modal
Close Modal