Comparison common equations for LDL-C calculation with direct assay and developing a novel formula in Iranian children and adolescents: the CASPIAN V study

Table 4 Correlatin between LDL-C level for different methods

		Ahmadi LDL	Friedwald LDL	Direct LDL	Anandraja LDL	Chen LDL	New formula
TG < 100	Ahmadi LDL	1	0.857	0.839	0.729	0.880	0.847
	Friedwald LDL	0.857	1	0.979	0.913	0.989	0.991
	Direct LDL	0.839	0.979	1	0.901	0.972	0.974
	Anandraja LDL	0.729	0.913	0.901	1	0.910	0.925
	Chen LDL	0.880	0.989	0.972	0.910	1	0.998
	New formula	0.847	0.991	0.974	0.925	0.998	1
TG > 100	Ahmadi LDL	1	0.515	0.503	0.445	0.658	0.520
	Friedwald LDL	0.515	1	0.986	0.954	0.984	1.00
	Direct LDL	0.503	0.986	1	0.942	0.969	0.986
	Anandraja LDL	0.445	0.954	0.942	1	0.930	0.957
	Chen LDL	0.658	0.984	0.969	0.930	1	0.985
	New formula	0.520	1.00	0.986	0.957	0.985	1
Total	Ahmadi LDL	1	0.566	0.553	0.430	0.696	0.566
	Friedwald LDL	0.566	1	0.982	0.922	0.979	0.994
	Direct LDL	0.553	0.982	1	0.910	0.963	0.978
	Anandraja LDL	0.430	0.922	0.910	1	0.893	0.931
	Chen LDL	0.696	0.979	0.963	0.893	1	0.986
	New formula	0.566	0.994	0.978	0.931	0.986	1

ISSN: 1476-511X