title: Chronic low back pain patients' use of, level of knowledge of and perceived benefits of complementary medicine: a cross-sectional study at an academic pain center.
abstract: BACKGROUND
  Chronic pain patients often use complementary medicine (CM) to alleviate their pain; however, little is known about the use of CM by chronic low back pain (cLBP) patients. We investigated the frequency of use of CM by cLBP patients, the perceived effects of these therapies, patients' knowledge regarding CM, and patient-physician communication regarding CM.
  
  
  METHODS
  A cross-sectional survey was conducted from November 2014 to February 2015. A questionnaire was distributed by physicians to 238 consecutive patients consulting for cLBP at the Pain Center of Lausanne University Hospital, Switzerland. Poisson regression model was used to analyze patients' level of knowledge regarding various CMs, and the logistic regression model was used to assess CM use for cLBP.
  
  
  RESULTS
  The questionnaire was returned by 168 cLBP patients (response rate: 70.6%). Lifetime prevalence of CM use for cLBP was 77.3%. The most commonly used therapies were osteopathy (48.8%), massage (45.2%) and acupuncture (31.6%), rated for their usefulness on a 0-10 scale as a mean ± SD of 5.4 ± 2.7, 5.9 ± 2.5 and 3.8 ± 3.2, respectively. The CM treatment best known by patients was osteopathy, followed by massage and acupuncture. If their doctors proposed CM as a treatment for cLBP, 78% of participants reported being very or somewhat likely to try CM. Respondents with CM health insurance were more likely to use CM (OR = 2.26; 95%CI: 1.07-4.78; p = 0.031) for cLBP. Respondents having experienced cLBP for more than five years were more likely to use CM to treat their cLBP than respondents having experienced cLBP for one year or less (OR = 2.84; 95%CI: 1.02-7.88; p = 0.044).
  
  
  CONCLUSIONS
  More than three-quarters of cLBP patients in our sample did use CM to treat their cLBP. The results showed that the most commonly used therapies were not necessarily the highest rated in terms of perceived usefulness. These results highlight the importance of developing integrative pain centers in which patients may obtain advice regarding CM treatments.
authors.affiliation: Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Route de la Corniche 10, 1010, Lausanne, Switzerland. Julie.Dubois@chuv.ch.
authors.forename: Julie
authors.identifier: http://orcid.org/0000-0001-9241-0231
authors.initials: J
authors.lastname: Dubois
authors.affiliation: Pain Center, Department of Anesthesiology, Lausanne University Hospital, Rue du Bugnon 46, 1011, Lausanne, Switzerland.
authors.forename: Emmanuelle
authors.initials: E
authors.lastname: Scala
authors.affiliation: Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Route de la Corniche 10, 1010, Lausanne, Switzerland.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Faouzi
authors.affiliation: Pain Center, Department of Anesthesiology, Lausanne University Hospital, Rue du Bugnon 46, 1011, Lausanne, Switzerland.
authors.forename: Isabelle
authors.initials: I
authors.lastname: Decosterd
authors.affiliation: Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Route de la Corniche 10, 1010, Lausanne, Switzerland.
authors.forename: Bernard
authors.initials: B
authors.lastname: Burnand
authors.affiliation: Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Route de la Corniche 10, 1010, Lausanne, Switzerland.
authors.forename: Pierre-Yves
authors.initials: PY
authors.lastname: Rodondi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D059350:Chronic Pain / Q000628:therapy; D000529:Complementary Therapies; D003430:Cross-Sectional Studies; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D017116:Low Back Pain / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D018710:Pain Clinics; D011795:Surveys and Questionnaires; D013557:Switzerland; D055815:Young Adult
keywords: Back pain; Chronic pain; Communication; Complementary medicine