When Alcoholics Anonymous and other 12-step programs are examined in controlled studies, a new review reports, scientists find no proof that they are superior to any other intervention in reducing alcohol dependence or alcohol-related problems.

The researchers, led by Marica Ferri of the Italian Agency for Public Health in Rome, found little to suggest that 12-step programs reduced the severity of addiction any more than any other intervention. And no data showed that 12-step interventions were any more — or any less — successful in increasing the number of people who stayed in treatment or reducing the number who relapsed after being sober.

Full Story: New York Times.