Fig. 2From: Anemia and formation of deep vein thrombosis before operation in patients with knee osteoarthritis: a cross-sectional studyVariable standardization difference diagram. ORāodds ratio; CIāconfidence interval; PSMāpropensity score matching; DVTādeep vein thrombosis; TKAātotal knee arthroplasty; Pā<ā0.05 was statistically significantBack to article page