DISABILITY RESULTING FROM OCCUPATIONAL LOW-BACK-PAIN .2. WHAT DO WE KNOW ABOUT SECONDARY PREVENTION - A REVIEW OF THE SCIENTIFIC EVIDENCE ON PREVENTION AFTER DISABILITY BEGINS

This is the second of two papers that systematically review available scientific evidence on the causes of disability from occupational low back pain, and the effectiveness of interventions to prevent it after its onset (secondary prevention). This paper reviews the national hist ory of how back pain and the risk factors for its extension into chron ic disability, followed by a critical summary of intervention studies attempting to reduce the duration of this disability, and to evaluate the results.