title: Impact of chiropractic services at an on-site health center.
abstract: OBJECTIVE
  To compare the influence of employer-sponsored, on-site chiropractic care against community-obtained care on health care utilization.
  
  
  METHODS
  This was a retrospective claims analysis of members of a single employee health plan receiving chiropractic care on-site or off-site from 2010 to 2012. Utilization differences were evaluated by having 1 health care event or more, including radiology or clinical visits.
  
  
  RESULTS
  There were 876 on-site and 759 off-site participants. The off-site group received more radiology services overall (55.5% vs 38.2%; P < 0.001) including magnetic resonance imaging, ultrasound, and radiograph (all P < 0.0001); had higher outpatient (P < 0.0001) and emergency department (P = 0.022) utilization; and demonstrated greater use of chiropractic care and physical therapy (both P < 0.0001).
  
  
  CONCLUSIONS
  Compared with off-site care, on-site chiropractic services are associated with lower health care utilization. These results support the value of chiropractic services offered at on-site health centers.
authors.affiliation: From Cerner Corporation (Ms Kindermann and Dr Miller), Culver City, Calif; and Cerner Corporation (Mr Hou), Kansas City, Mo.
authors.forename: Sylvia L
authors.initials: SL
authors.lastname: Kindermann
authors.forename: Qingjiang
authors.initials: Q
authors.lastname: Hou
authors.forename: Ross M
authors.initials: RM
authors.lastname: Miller
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002684:Chiropractic; D005260:Female; D006801:Humans; D007345:Insurance Claim Review; D008297:Male; D008875:Middle Aged; D009786:Occupational Health Services; D012189:Retrospective Studies; D055815:Young Adult