Longitudinal Associations of Cigarette Smoking, Smoking Intensity, and Smoking TrajectoriesWith Emergency Room Utilization Among U.S. Adults

Background: Tobacco smoking is a leading cause of morbidity and mortality in the United States, yet its longitudinal association with emergency room (ER) utilization remains understudied. We examined whether cigarette smoking, smoking intensity, and smoking trajectories were associated with subsequent ER use. Methods: We analyzed adult respondents from Waves 1-6 of the Population Assessment of Tobacco and Health Study. Wave 1-3 smoking status, intensity, and cigarettes/day were examined in relation to next-wave ER outcomes. Logistic generalized estimating equation models were used for any ER v

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