Fig. 1From: Preoperative deep venous thrombosis (DVT) after femoral neck fracture in the elderly, the incidence, timing, location and related risk factorsHorizontal axis indicated the 1-specificity and vertical axis indicated the sensitivity of each variable in predicting DVT. The lines in different colors represented the different variables. The area under the curve (AUC) represented the respective ability to discriminate the DVT casesBack to article page