In 2012, adults whose highest level of academic achievement was high school had the lowest rates of successfully quitting smoking in the U.S.
"The Health Consequences of Smoking—50 Years of Progress. A Report of the Surgeon General." U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health. 2014. Report.http://www.surgeongeneral.gov/library/reports/50-years-of-progress/full-report.pdf