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Performance of SOAR (systolic blood pressure, oxygenation, age and respiratory rate) scoring criteria in community-acquired pneumonia: a prospective multi-centre study.
MedLine Citation:
PMID:  23134691     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: severity assessment in community-acquired pneumonia (CAP) is important as it is associated with significant mortality. In this study, we compared a previously suggested severity assessment rule for CAP- SOAR (systolic blood pressure, oxygenation, age and respiratory rate)- against the CURB-65 criteria. METHODS: we conducted a prospective study in three hospitals in Norfolk and Suffolk, UK. Consecutive patients with CAP were scored for severity with CURB-65 (n = 190), and SOAR (when there was sufficient information, n = 112). Mortality data was collected at 6 weeks. RESULTS: there were 100 males (53%). The age range was 18-101 years (mean 72 years, median 76 years). Sixty-five (34%) had severe pneumonia by CURB-65, and 56 patients out of 112 (50%) had severe pneumonia by SOAR. Patients with severe CAP were significantly more likely to be older, female, and to have higher urea levels and a lower PaO(2):FiO(2) ratio on admission. There were a total of 54 deaths during follow-up (33 of these in the SOAR-categorised group). There were 32 deaths (50%) in the severe and 22 deaths (18%) in the non-severe groups by CURB-65. There were 23 deaths (70%) in the severe and 22 deaths (30%) in the non-severe groups by SOAR. For CURB-65, sensitivity, specificity, positive and negative predictive values were 60.6, 72.2, 47.6 and 81.4%. For SOAR, the respective values were 69.7%, 58.2, 41.1 and 82.1%. CONCLUSION: SOAR had demonstrably better sensitivity, but lower specificity compared with CURB-65 in this patient cohort. SOAR might be more suitable for assessing disease severity as an alternative or adjunct to CURB-65, particularly in the elderly.
Authors:
Deepak N Subramanian; Patrick Musonda; Prasanna Sankaran; Syed M Tariq; Ajay V Kamath; Phyo Kyaw Myint
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-7
Journal Detail:
Title:  Age and ageing     Volume:  -     ISSN:  1468-2834     ISO Abbreviation:  Age Ageing     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375655     Medline TA:  Age Ageing     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Clinical Genetics, Addenbrooke's Hospital, Cambridge, UK.
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