For subacute (duration 4 to 8 weeks) low back pain,intensive interdisciplinary rehabilitation (defined as an intervention that includes a physician consultation coordi- nated with a psychological, physical therapy,social,or vocational intervention) (see Glossary) is moderately effective (111), and functional restoration (see Glossary) with a cognitive-behavioral component reduces work absenteeism due to low back pain in occupational settings (112). There is little evidence on effectiveness of other treatments specifically for subacute low back pain (113). However, many trials enrolled mixed populations of patients with chronic and subacute symptoms, suggesting that results may reasonably be applied to both situations.