Fig. 5
From: An improved method for estimating low LDL-C based on the enhanced Sampson-NIH equation
Comparison of estimated LDL-C versus BQ-LDL-C at low LDL-C levels. LDL-C was calculated in patients with LDL-C ≤ 100 mg/dL and TG ≤ 800 mg/dL by F-LDL-C (A, N = 10,373), eM-LDL-C (B, N = 10,373), S-LDL-C (C, N = 10,373), and eS-LDL-C (D, N = 4,115) equations and plotted against LDL-C as measured by BQ reference method (BQ-LDL-C). Solid lines are the linear fit for indicated regression equations. Dotted lines are lines of identity. Results are color coded by TG level with the values indicated in the legend (mg/dL)