Do people with higher or lower incomes consume more alcohol?

For my project I decided to compare drinking habits among those with different household incomes. I am using the data from the U.S. National Epidemiological Survey on Alcohol and Related Conditions (NESARC). I have asked myself the question "Do people with higher or lower incomes consume more alcohol?" Before I had done research of other research on the topic, I had assumed that low income households would be more frequent drinkers, due to the stress and anxiety that comes from the burden of poverty. However, through looking at other papers I have searched through have concluded that people who live in higher income homes, drink more frequently. For example Ormond G. and  Murphy R. wrote in their paperthat "...the household income of drinkers is higher than that of non-drinkers and of those who never drank." In my project I will chart how closely related income and alcohol use are, using data collected from items such as "Total Family Income in Last 12 Months", "How Often Drank Any Alcohol in Last 12 Months", "Number of Drinks of Any Alcohol Consumed on Days when Drank Alcohol in Last 12 Months", "How Often Drank 5+ Drinks of any Alcohol in Last 12 Months". I will also look into related fields such as "Ever Sought Help Because of Drinking", "Drank Alcohol to Avoid Specific Phobia in Last 12 Months". I would like to explore this hypothesis of high income households being more frequent drinkers, to see if they are also likely drinking because of anxiety problems.

• Ormond, G., & Murphy, R. (2016). The effect of alcohol consumption on household income in Ireland. Alcohol, 56, 39-49. doi:10.1016/j.alcohol.2016.10.003 

• Galea, S., Ahern, J., Tracy, M., & Vlahov, D. (2007). Neighborhood Income and Income Distribution and the Use of Cigarettes, Alcohol, and Marijuana. American Journal of Preventive Medicine, 32(6). doi:10.1016/j.amepre.2007.04.003

• Anxiety and drinking behavior: Moderating effects of alcohol-related expectancies. (1992). Pharmacology Biochemistry and Behavior, 42(2), 378. doi:10.1016/0091-3057(92)90619-q