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![Test Could Misdiagnose Diabetes in African-Americans A new study in finds that HbA1c tests underreport a key blood sugar measure in African-Americans with sickle cell trait. iStock photo](https://medicine.at.brown.edu/wp-content/uploads/2017/02/istock_HbA1c-351x185.jpg)
Test Could Misdiagnose Diabetes in African-Americans
Sickle cell trait may lower blood sugar readings, causing missed diagnoses and treatment.