From: Association between glycosylated hemoglobin, diabetes mellitus, and preoperative deep vein thrombosis in patients undergoing total joint arthroplasty: a retrospective study
HBA1
 < 6.15%
6.15–6.9%
7.0–7.9%
 ≥ 8%
Total
DVT
62/1062 (6.04%)
18/207 (8.70%)
10/80 (12.5%)
10/73 (13.7%)
100/1386 (7.22%)