CYGB and femoral neck fracture: Patients had a lower occurrence rate of DVT with age ≤70 years (age ≤70 vs >70, mean survival time:4.72d, 95%CI:4.09–5.34 vs 3.56d, 95%CI:3.11–4.01, P = 0.000), femoral neck fracture (femoral neck fracture vs intertrochanteric fracture, mean survival time: 4.39d, 95%CI:3.87–4.91 vs 3.64d, 95%CI:3.12–4.16, P = 0.006), normal HGB level(HGB ≥130 vs <130, mean survival time: 4.49d, 95%CI:3.37–5.25 vs 3.78d, 95%CI:3.35–4.21, P = 0.022), and normal Hct level(Hct≥40% vs<40%, mean survival time: 5.18d, 95%CI:4.42–5.95 vs 3.61d, 95%CI:3.20–4.03, P = 0.000)(Fig 5).