Although the relation between alcohol and cancer has been extensively studied, the role of alcohol independent of smoking has not been settled.  So the premise is to determine what impact alcohol sans smoking may have with regards to various forms of cancer development in humans.

Aim

The was to assess the risk of overall cancer on all levels of alcohol consumption and to quantify the influence of drinking patterns on overall cancer risk.

Results

Consumption of alcohol in light to moderate drinking amounts correlated with an increased risk of alcohol-related cancer among smokers and non-smokers.  Consumption above moderate levels (?30 g/day) was more strongly associated with risk of total cancer among smokers than non-smokers

Conclusion

Light to moderate drinking is associated with minimally increased risk of overall cancer.

Reference