text_1: HbA1c consistently overestimates glycemic control in black individuals with Sickle cell trait (SCT).
text_2: Results The analytic sample included 4620 participants (mean age, 52.3 [SD, 11.8] years; 2835 women [61.3%]; 367 [7.9%] with SCT) with 9062 concurrent measures of fasting glucose and HbA1c levels.