Fig. 2

Kaplan-Meier curves for diseases progression according to levels of LDH (a) and age (b). a Patients with LDH above the normal range were at significantly high risk of disease progress than those with normal levels of LDH (hazard ratio [HR], 8.31; 95% CI, 2.96–23.3, P < 0.001). b Patients aged 50 or older were at increased risk than patients whose age were younger than 50 (HR, 3.56; 95% CI, 1.35–10.2; P = 0.011). Abbreviation: LDH, lactase dehydrogenase