Streptococcal pharyngitis: Diagnosis by gram stain

George E Crawford, F. Brancato, K. K. Holmes

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Group A beta-hemolytic streptococci were isolated from 49 (10.4%) of 472 patients with pharyngitis. Throat culture results, interpreted by five observers of varying experience, showed the mean sensitivity, specificity, and predictive value of a positive Gram-stained smear of pharyngeal secretions as 73%, 96%, and 71%. Assignment to a high-risk group by clinical algorithm gave sensitivity, specificity, and predictive value of only 45%, 83%, and 23%. The Gram-stained smear is the most accurate method of early diagnosis of streptococcal pharyngitis.

Original languageEnglish (US)
Pages (from-to)293-297
Number of pages5
JournalAnnals of Internal Medicine
Volume90
Issue number3
StatePublished - 1979
Externally publishedYes

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Pharyngitis
Sensitivity and Specificity
Pharynx
Streptococcus
Early Diagnosis
Gram's stain

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Crawford, G. E., Brancato, F., & Holmes, K. K. (1979). Streptococcal pharyngitis: Diagnosis by gram stain. Annals of Internal Medicine, 90(3), 293-297.

Streptococcal pharyngitis : Diagnosis by gram stain. / Crawford, George E; Brancato, F.; Holmes, K. K.

In: Annals of Internal Medicine, Vol. 90, No. 3, 1979, p. 293-297.

Research output: Contribution to journalArticle

Crawford, GE, Brancato, F & Holmes, KK 1979, 'Streptococcal pharyngitis: Diagnosis by gram stain', Annals of Internal Medicine, vol. 90, no. 3, pp. 293-297.
Crawford GE, Brancato F, Holmes KK. Streptococcal pharyngitis: Diagnosis by gram stain. Annals of Internal Medicine. 1979;90(3):293-297.
Crawford, George E ; Brancato, F. ; Holmes, K. K. / Streptococcal pharyngitis : Diagnosis by gram stain. In: Annals of Internal Medicine. 1979 ; Vol. 90, No. 3. pp. 293-297.
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