Predictive Power of Dependence Measures for Quitting Smoking. Findings from the 2016 to 2018 ITC Four Country Smoking and Vaping Surveys

Abstract

Introduction: To test whether urges to smoke and perceived addiction to smoking have independent predictive value for quit attempts and short-term quit success over and above the Heaviness of Smoking Index (HSI). Aims and Methods: Data were from the International Tobacco Control Four Country Smoking and Vaping Wave 1 (2016) and Wave 2 (2018) surveys. About 3661 daily smokers (daily vapers excluded) provided data in both waves. A series of multivariable logistic regression models assessed the association of each dependence measure on odds of making a quit attempt and at least 1-month smoking abstinence. Results: Of the 3661 participants, 1594 (43.5%) reported a quit attempt. Of those who repo..