title: Effects of multidisciplinary inpatient rehabilitation for chronic back or neck pain: a register-linkage study of sickness absences and analgesic purchases in an occupational cohort.
abstract: OBJECTIVE
  To determine the effects of multidisciplinary in-patient rehabilitation for chronic back or neck pain on sickness absences and analgesic purchases.
  
  
  METHODS
  A prospective observational study.
  
  
  METHODS
  10 towns in Finland.
  
  
  METHODS
  34 838 local government employees, including 418 participants in rehabilitation for chronic back pain and 195 participants in rehabilitation for chronic neck pain between 1994 and 2002.
  
  
  METHODS
  The annual rates of short (1-3 days), long (>3 days), and very long (>21 days) sickness absences and the defined daily doses (DDD) of prescribed analgesics.
  
  
  RESULTS
  The rate of very long (>21 days) sickness absence among the chronic back pain rehabilitees was 3.03-fold (95% CI 2.55 to 3.60) compared to the non-rehabilitees in the year before rehabilitation. This ratio declined to 1.88 (95% CI 1.65 to 2.37) three years after rehabilitation. No further decline in the rate of very long sickness absence was observed in the subsequent years. For chronic neck pain rehabilitees, no evidence of the effectiveness of rehabilitation on sickness absence was found. In relation to consumption of analgesics, the mean rate of DDDs declined among the back and neck pain rehabilitees after rehabilitation compared to the non-rehabilitees.
  
  
  CONCLUSIONS
  Multidisciplinary in-patient rehabilitation for chronic back pain may decrease the risk of very long sickness absence for three years. In relation to rehabilitation for chronic neck pain, no changes in sickness absences were found.
authors.affiliation: Hospital District of South Ostrobotnia, Hanneksenrinne 7, F1-60220 Seinäjoki, Finland. heikki.suoyrjo@epshp.fi
authors.forename: H
authors.initials: H
authors.lastname: Suoyrjö
authors.forename: K
authors.initials: K
authors.lastname: Hinkka
authors.forename: T
authors.initials: T
authors.lastname: Oksanen
authors.forename: M
authors.initials: M
authors.lastname: Kivimäki
authors.forename: T
authors.initials: T
authors.lastname: Klaukka
authors.forename: J
authors.initials: J
authors.lastname: Pentti
authors.forename: J
authors.initials: J
authors.lastname: Vahtera
mesh_terms: D000328:Adult; D000700:Analgesics / Q000627:therapeutic use*; D001416:Back Pain / Q000534:rehabilitation*; D002908:Chronic Disease; D004334:Drug Administration Schedule; D005260:Female; D005387:Finland; D006801:Humans; D008297:Male; D008875:Middle Aged; D019547:Neck Pain / Q000534:rehabilitation*; D009784:Occupational Diseases / Q000534:rehabilitation*; D010348:Patient Care Team; D011446:Prospective Studies; D012042:Registries; D012044:Regression Analysis; D018582:Sick Leave; D018434:Sickness Impact Profile; D016896:Treatment Outcome; D014940:Work Schedule Tolerance
chemical_list: D000700:Analgesics