Fig. 2From: Role of a new age-adjusted D-dimer cutoff value for preoperative deep venous thrombosis exclusion in elderly patients with hip fracturesThe D-dimer level of all patients and six 5-year age groups. The level of D-dimer in each group was shown as box plots with a percentile of 5–95%. Comparison of 7 groups: p < 0.05Back to article page