Basic Logic and Structure of Tailored Messages. Abbreviations: CHD = Coronary Heart Disease. * Further tailored on whether participant has prescription drug plan. † Further tailored on self-reported adherence at baseline. ‡ Further tailored on which smoking cessation medication was prescribed. § If fewer than 3 barriers identified, patients received default messages: "Plan Ahead"; "Check on Your Progress Regularly"; and "Eat Right and Be Active".