title: Variability of physicians' thresholds for neuroimaging in children with recurrent headache.
abstract: BACKGROUND
  We sought to determine the extent to which physicians agree about the appropriate decision threshold for recommending magnetic resonance imaging in a clinical practice guideline for children with recurrent headache.
  
  
  METHODS
  We surveyed attending physicians in Canada practicing in community pediatrics, child neurology, pediatric radiology, and pediatric neurosurgery. For children in each of six risk categories, physicians were asked to determine whether they would recommend for or against routine magnetic resonance imaging of the brain in a clinical practice guideline for children with recurrent headache.
  
  
  RESULTS
  Completed surveys were returned by 114 physicians. The proportion recommending routine neuroimaging for each risk group was 100% (50% risk), 99% (10% risk), 93% (4% risk), 54% (1% risk), 25% (0.4% risk), 4% (0.01% risk). Community pediatricians, physicians in practice >15 years, and physicians who believed they ordered neuroimaging less often than peers were less likely to recommend neuroimaging for the 1% risk group (all p < 0.05).
  
  
  CONCLUSIONS
  There is no consensus among pediatric specialists regarding the appropriate decision threshold for neuroimaging in a clinical practice guideline for children with recurrent headache. Because of the impact that individual threshold preferences may have on guidelines, these findings support the need for careful composition of guideline committees and consideration of the role of patient and family preferences. Our findings also support the need for transparency in guidelines regarding how evidence was translated into recommendations and how conflicts were resolved.
authors: Department of Pediatrics and Child Health, The University of Manitoba, Winnipeg, MB, Canada. cdaymont@mich.ca.
authors: Carrie
authors: C
authors: Daymont
authors: Patrick J
authors: PJ
authors: McDonald
authors: Kristy
authors: K
authors: Wittmeier
authors: Martin H
authors: MH
authors: Reed
authors: Michael
authors: M
authors: Moffatt
mesh_terms: D001291:Attitude of Health Personnel; D001921:Brain / Q000473:pathology; D002170:Canada; D002648:Child; D003154:Community Medicine; D006261:Headache / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000706:statistics & numerical data*; D010372:Pediatrics; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data*; D012008:Recurrence; D011795:Surveys and Questionnaires