CRP and deep vein thrombosis: PT, aPTT, D-dimer and fibrinogen levels did not differ significantly, but ferritin and CRP levels were significantly higher in the thrombosis group (ferritin 2193 μg/L vs 1320 μg/L, p<0.001 and CRP 172 mg/L vs 106 mg/L, P = 0.007).