Independent variables
This protocol is extracted from research article:
Are people aware of the link between alcohol and different types of Cancer?
BMC Public Health, Apr 15, 2021; DOI: 10.1186/s12889-021-10780-2

In analyses examining factors associated with alcohol-cancer risk awareness, independent variables included substance use behaviors, cancer history, and demographic characteristics. We specifically asked questions about alcohol consumption and tobacco use. For alcohol, we measured frequency of consumption and average daily amount consumed in the past 30 days, which were combined into a quantity-frequency measure by multiplying the two variables together. We also measured frequency of alcohol binge drinking in a 30-day period. Due to skewness, we dichotomized this to identify people who binge drank versus people who did not binge drink. Tobacco use frequency was measured using a single item that asked about frequency tobacco product use (“Do you currently use a tobacco product (cigarettes, chewing tobacco, snuff, snus) every day, some days, or not at all?”) and had four answer options (“Every day,” “Some days,” “Not at all,” “Don’t know”). Two questions were about cancer history: “Have you ever been or are you currently diagnosed with cancer? (Yes/No/Prefer not to answer)” and “That you know of, has anyone in your family been diagnosed with cancer? (Yes/No/Don’t know/Prefer not to answer).” Finally, we asked several questions about participant demographics (educational attainment [< 9 years – high school diploma/GED; Some college – Associate’s degree; Bachelor’s degree; Graduate degree], age [in 10-year intervals], ethnicity [Hispanic/Latino; non-Hispanic/Latino], gender [men/women], and race [White; African American; American Indian; Asian; Not White, Black, American Indian, or Asian]).

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