Centor Score
Probability that pharyngitis is due to group A strep.
What is Centor Score?
Probability that pharyngitis is due to group A strep. Centor Score is intended for use in: Adults ≥ 15 years.
How to Use the Centor Score Calculator
- Enter Tonsillar exudate.
- Enter Tender anterior cervical lymphadenopathy.
- Enter History of fever > 38°C.
- Enter Absence of cough.
- Click Calculate to see your result and interpretation.
Formula & Version
This calculator uses formula version 1.0, last reviewed September 2026.
Clinical Considerations & Limitations
- Original Centor did not include an age adjustment — see the McIsaac score for the age-adjusted version usable in children.
References
- Centor RM et al., Med Decis Making 1981;1:239-246
Frequently Asked Questions
What is Centor Score?
Probability that pharyngitis is due to group A strep.
Who is Centor Score intended for?
Adults ≥ 15 years. Always confirm applicability to your specific patient before use.
What are the limitations of Centor Score?
Original Centor did not include an age adjustment — see the McIsaac score for the age-adjusted version usable in children.
What formula or reference does Centor Score use?
Centor RM et al., Med Decis Making 1981;1:239-246
Is Centor Score a diagnosis?
No. Centor Score produces a score or estimate to support clinical decision-making — it is not a diagnosis and should be interpreted alongside full clinical judgement.