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Received July 4, 2017 Revised August 14, 2017 Accepted August 22, 2017 Address for correspondence Kyurin Hwang, MD Department of OtorhinolaryngologyHead and Neck Surgery, Soonchunhyang University College of Medicine, 59 Daesagwan-ro, Yongsan-gu, Seoul 04401, Korea Tel +82-2-709-9360 Fax +82-2-709-9134 E-mail enthkr@gmail.com Background and ObjectivesZZThis study aims to verify the usefulness of Centor scores to diagnose the Group A Streptococcal pharyngitis. Subjects and MethodZZThe subjects of this study were 379 patients who had been examined by the rapid antigen detection test (RADT) for Group A Streptococcus. We analyzed their medical records and laboratory test results retrospectively and compared the results of Centor symptom scores with those of RADT. Then we analyzed the association of RADT, the Centor score and the laboratory test results statistically. ResultsZZThere were no correlation between the RADT results and fever, cough, tonsillar enlargement, nasal symptoms, myalgia or chilling (p>0.05). In the RADT positive group, there were more patients with tonsillar exudate, neck lymph node enlargement, tenderness and pharyngeal abscess formation significantly (p<0.05). The Centor score and C-reactive protein were significantly higher in the RADT positive group (p<0.05). ConclusionZZThe results of this study suggest that Centor symptom scores can be used to determine which antibiotics to use. The Centor score system can help reduce medical costs and detect the problematic Group A Streptococcal pharyngitis. Korean J Otorhinolaryngol-Head Neck Surg 2018;61(1):35-41

Usefulness of Centor Score to Diagnosis of Group a Streptococcal Pharyngitis and Decision Making of Antibiotics Use