What factor might affect an ESR result?

Several factors can affect an erythrocyte sedimentation rate (ESR) result, including the presence of inflammation, infection, or autoimmune disorders, which can increase the ESR. Additionally, factors such as age, gender, and anemia can influence the rate, with older individuals typically showing higher ESR values. Certain medications, including corticosteroids and nonsteroidal anti-inflammatory drugs (NSAIDs), may also impact the results. Lastly, technical factors like sample handling and testing methodology can lead to variability in ESR readings.