Couples of significant others (COSO) in a joint effort to quit smoking

Background Motivational support is crucial for the success of smoking cessation. Significant others are a proven source of that support [1,2]. As far as we know social support has been used to achieve smoking cessation higher rates, but only as support and not as a concurrent attempt of a couple to quit smoking. We investigated whether the inclusion of couples of significant others in a joint effort to quit smoking in smoking cessation groups formed by a population based sample of participants would increase their succession rate compared to the participants that receive the same treatment alone.