Table 1.
Demographic and biochemical characteristics expressed as mean ± SD.
Fig 1.
The comparison of calculated to measured low-density lipoprotein (LDL-C) using Passing- Bablok regression analysis.
(A) Friedewald formula and measured LDL-C. (B) Martin Hopkins formula and measured LDL-C. (C) Friedewald formula and Martin Hopkins formula.
Table 2.
Summary of the comparison between measured and calculated low-density lipoprotein (LDL-C), using the Friedewald and Martin Hopkin formulae as well as regression analysis at different LDL-C levels.
Fig 2.
Bland Altman Plots comparing measured LDL-C to calculated LDL-C.
Measured LDL-C to Friedewald formula (A) and measured LDL-C to Martin Hopkins formula (B).
Fig 3.
Bland Altman Plot comparing measured LDL-C to the Friedewald formula and Martin Hopkins formula at TG-C of ≥ 1.7 mmol/L.
(A) There is a positive mean bias of 21.8% (95% confidence interval 19.9–23) between measured LDL-C and Friedewald formula. and a reduced positive bias of 4.2% (95% CI 3.0–5.5) with the (B) Martin-Hopkins formula. The total allowable limit of 12% is indicated by the arrow.
Table 3.
The mean bias, regression equation, correlation coefficient and p-value of measured and calculated low-density lipoprotein at different triglycerides (TG) cut-offs.