Motivational interviewing for smoking cessation

This is a protocol for a Cochrane Review (Intervention). The objectives are as follows: The primary objective of our review is to determine whether or not motivational interviewing (MI) promotes smoking cessation. Our review will address the following questions: Is MI effective for smoking cessation compared with no intervention? Is MI effective for smoking cessation compared with simple advice (routine care)? Is MI cost effective in terms of time, i.e. the interview session time or number of sessions/follow up needed, compared with other therapies? Are people who are induced to quit through MI less likely to relapse than those who stop without intervention or with brief advice? Is intensive MI ( more sessions, longer duration of each session) more effective than single or shorter sessions? Does MI have incremental effects when used with other therapies? Does MI have any significant harmful effects?