title: Australasian respiratory and emergency physicians do not use the pneumonia severity index in community-acquired pneumonia.
abstract: OBJECTIVE
  The value of community-acquired pneumonia (CAP) severity scoring tools is almost exclusively reliant upon regular and accurate application in clinical practice. Until recently, the Australasian Therapeutic Guidelines has recommended the use of the Pneumonia Severity Index (PSI) in spite of poor user-friendliness.
  
  
  METHODS
  Electronic and postal survey of respiratory and emergency medicine physician and specialist registrar members of the Royal Australasian College was undertaken to assess the use of the PSI and the accuracy of its application to hypothetical clinical CAP scenarios. The confusion, urea, respiratory rate, blood pressure, age 65 or older (CURB-65) score was also assessed as a simpler alternative.
  
  
  RESULTS
  Five hundred thirty-six (228 respiratory, 308 emergency) responses were received. Only 12% of respiratory and 35% of emergency physicians reported using the PSI always or frequently. The majority were unable to accurately approximate PSI scores, with significantly fewer respiratory than emergency physicians recording accurate severity classes (11.8% vs 21%, OR 0.50, 95% CI: 0.37-0.68, P < 0.0001). In contrast, significantly more respiratory physicians were able to accurately calculate the CURB-65 score (20.4% vs 15%, OR 1.45, 95% CI: 1.10-1.91, P = 0.006).
  
  
  CONCLUSIONS
  Australasian specialist physicians primarily responsible for the acute management of CAP report infrequent use of the PSI and are unable to accurately apply its use to hypothetical scenarios. Furthermore, respiratory and emergency physicians contrasted distinctly in their use and application of the two commonest severity scoring systems--the recent recommendation of two further alternative scoring tools by Australian guidelines may add to this confusion. A simple, coordinated approach to pneumonia severity assessment across specialties in Australasia is needed.
authors.affiliation: Department of Respiratory Medicine, Mater Adult Hospital, Auchenflower, Queensland, Australia. david.serisier@mater.org.au
authors.forename: David J
authors.initials: DJ
authors.lastname: Serisier
authors.forename: Sophie
authors.initials: S
authors.lastname: Williams
authors.forename: Simon D
authors.initials: SD
authors.lastname: Bowler
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D044362:Australasia / Q000453:epidemiology; D017714:Community-Acquired Infections / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology; D003625:Data Collection; D004636:Emergency Service, Hospital; D005260:Female; D019983:Guideline Adherence; D006801:Humans; D008297:Male; D010820:Physicians / Q000706:statistics & numerical data*; D011014:Pneumonia / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology; D017410:Practice Guidelines as Topic; D012720:Severity of Illness Index; D013038:Specialization / Q000706:statistics & numerical data*