[Two systems of persuasion to quit smoking. A controlled trial]. / Dos sistemas de persuasión para la deshabituación tabáquica. Un ensayo controlado.

The effectiveness of two systems of persuasion for persons willing to quit smoking was compared in the context of health educational activities: the traditional method (TN), based on the warning of the risk of disease and death, and a method of positive reinforcement focused on the better quality of life and health level (TP. The study had a controlled trial format, with three randomized groups: One with TN, receiving the traditional negative approach; other with TP, the positive treatment; and another group without therapy. After a 15, 30, 60 and 90 days of follow-up it could not be shown that TP is superior to TN. The former appeared as more effective but without significant differences.