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Centor Score (Modified) (for Streptococcal Pharyngitis)

Age range (in years)
Exudate of swelling on tonsils
Tender/swollen anterior cervical lymph nodes
Fever (Temparature >38°C OR 100.4°F)
Cough present?
Total Centor score:
Probability of streptococcal pharyngitis:

 

Formula

Centor scores of:

<= 0 point: Probability of streptococcal pharyngitis: 1% - 2.5%.

1 point: Probability of streptococcal pharyngitis: 5% - 10%.

2 points: Probability of streptococcal pharyngitis: 11% - 17%.

3 points: Probability of streptococcal pharyngitis: 28% - 35%.

4-5 points: Probability of streptococcal pharyngitis: 51% - 53%.