Back to clinical tools

Age-adjusted ESR/CRP for rheumatoid arthritis

RheumatologyRheumatoid arthritisReference valuesBeta toolThis tool is in beta. It has undergone internal validation but still requires additional testing. Always confirm the data entered and the results obtained before clinical use. It should not be used as the sole basis for clinical decisions.
Enter adult age in years. Fractional adult ages are accepted when needed.
years
Choose the published male or female formula branch for the reference values.

Clinical noticeEducational reference calculator only. Use these age-adjusted values as laboratory context, not as a substitute for validated rheumatoid arthritis scores or clinical judgment.

Context and use

If sex = male: adjusted ESR = age / 2; adjusted CRP = age / 50.

If sex = female: adjusted ESR = (age + 10) / 2; adjusted CRP = (age / 50) + 0.6.

Reference-value tool only; it does not calculate DAS28, SDAI, CDAI, or validated disease-activity categories.

Pain assessment

Abbey Pain Scale for Dementia Patients

Six-domain observational pain scale for adults with dementia who cannot provide a reliable verbal pain report.

Dementia · Geriatrics
Nutrition and metabolism

Basal Energy Expenditure

Estimates basal energy expenditure in kcal/day using the original Harris-Benedict equations.

Certifications and Compliance

1.1.1 © 2024-2026 Medgical