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DOI: 10.1177/0193841X02026001002 Evaluation of the Effects of a Smoking Cessation Intervention Using the Multilevel Thresholds of Change ModelUniversity of Illinois at Chicago
University of Illinois at Chicago
University of Illinois at Chicago
University of Illinois at Chicago The multilevel thresholds of change model is used to analyze the effect of a smoking cessation intervention on stage of readiness to quit across a 2-year follow-up period. The intervention, targeted to females with high school or less education, consisted of a televised component and a written manual. Any exposure to the intervention had a significant effect on stages that precede quitting but not on quitting; participation in the intervention had significant effects at all levels of change, including quitting. The written component had a stronger independent effect than the televised component. Intervention effects were strongest within women who were initially precontemplative.
Key Words: multilevel thresholds of change random effects nonproportional odds smoking cessation intervention evaluation
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