What is a Normal ESR Level by Age?

A normal Erythrocyte Sedimentation Rate (ESR) level varies depending on age and sex. Here's a breakdown:

Age & Sex Category	Normal ESR Level (mm/hr)
Male <50 years	≤15
Female <50 years	≤20
Male ≥50 years	≤20
Female ≥50 years	≤30

In summary, normal ESR levels generally increase with age, and are often higher in females than in males.