CURB-65 Score

Serum urea concentration.

Respiratory rate in breaths per minute.

Systolic blood pressure in mmHg.

Diastolic blood pressure in mmHg.

Patient age in completed years, used as a variable in many clinical calculators and risk scores.

Accepted units

• years

Used by

• Cockcroft–Gault
• CHA₂DS₂-VASc
• HAS-BLED
• CURB-65
• eGFR

Clinical note
Use the patient’s age at the time of assessment. Some paediatric and neonatal tools require age in months, weeks or days instead.

Reference
Calculator-specific clinical guidance