Abstract 10690: Prevalence of Electronic Cigarette Use and Its Determinants in Us Persons of Hispanic Heritage: The Hispanic Community Health Study / Study of Latinos (HCHS/SOL)

Introduction: Popularity and use of electronic nicotine delivery systems (ENDS or e-cigarettes), have increased tremendously in the United States (US). Yet, data in a representative sample of US Hispanics/Latinos is limited. We determined the prevalence and correlates of ENDS use from the national Hispanic Community Health Study/Study of Latinos (HCHS/SOL). Methods: Cross-sectional data collected between the years 2015–2017 were analyzed to assess ENDS use (ever (current: use ≤ past 30 days; former: use > past 30 days) and never) among 11,623 adults aged 23+ years. Weighted prevalence estimates were reported and age-adjusted logistic regression models were used to examine associations between sociodemographic, lifestyle/behavioral, and clinical exposures with ENDS use (vs. nonsmokers and cigarette-only smokers, separately). Results: Mean age 47 years ± 0.3 and 52% women. The weighted prevalence of current and former ENDS use was 2.0% and 10.4%, respectively. Over 67% of current ENDS users reported dual-cigarette use. Current ENDS use prevalence estimates ranged from 1.1% in Hispanics/Latinos of South American background to 2.1% in Hispanics/Latinos of Mexican and Puerto Rican background. In logistic regression models, compared with nonsmokers, increased odds of current ENDS use was associated with males (OR=4.90, p<0.001), higher education (OR=2.03, p<0.05), English language preference (OR=7.59, p<0.001), Puerto Rican background (OR=2.09, p<0.05), a high level of physical activity (OR=4.02, p<0.001), and history of alcohol use (OR=15.93, p<0.001). Older age (≥45 years) (OR=0.30, p<0.001), foreign-born participants (OR=0.12, p<0.001), and those with obesity (OR=0.60, p<0.05) and type 2 diabetes (OR=0.46, p<0.001) had lower odds of current ENDS use. These trends were generally similar when cigarette-only smokers were the reference group. Having ever used ENDS was associated with prevalent coronary artery disease. Conclusions: Our study suggest that Hispanic/Latino individuals who are young adults, male, US-born, or have high acculturation are more likely to report current ENDS use.