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Table 2 Mean HbA1c levels and HbA1c variability during the follow-up, according to quartiles (Q1–4) of HbA1c variability at baseline, in subjects with a mean HbA1c ≤ 53 mmol/mol during the exposure phase

From: HbA1c variability predicts cardiovascular complications in type 2 diabetes regardless of being at glycemic target

  Quartiles of HbA1c variability
Q1 Q2 Q3 Q4
N 25,143 25,442 25,426 25,522
HbA1c (mmol/mol) 46.5 (42.0–52.0) 51.3 (45.8–57.6) 56.0 (49.3–63.7) 57.0 (49.3–66.8)
HbA1c SD 2.8 (1.7–4.9) 4.3 (2.6–7.1) 6.0 (3.6–9.1) 6.7 (3.7–10.8)
  1. Data are reported as median and interquartile range. SD standard deviation