Fig. 2From: Factors affecting postoperative mortality of patients with insufficient union following osteoporotic vertebral fractures and impact of preoperative serum albumin on mortalityOverall survival comparison based on preoperative serum albumin levels (dashed line, ≤3.5 g/dL; solid line, > 3.5 g/dL) using the Kaplan-Meier methodBack to article page