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Fig. 3 | Bulletin of the National Research Centre

Fig. 3

From: Assessment of estimated low-density lipoprotein-cholesterol (LDL-c) equations: a systematic review and meta-analysis

Fig. 3

The pooled correlation coefficient of Friedewald’s and Martin’s LDL-c equation compared to direct measurement in determining levels of LDL-c from matching studies. The pooled correlation between Martin’s LDL-c equation and the direct measurement in determining levels of LDL-c as well as the correlation between the Friedewald’s LDL-c equation and the direct measurement in determining levels of LDL-c. This correlation pooled 12 studies in the analysis. There was a positive correlation between Martin’s LDL-c equation and the direct measurement in determining levels of LDL-c [0.96 (95% CI 0.94–0.98)]. Similarly, Friedewald’s LDL-c equation positively correlated with the direct measurement in determining levels of LDL-c [0.94 (95% CI 0.92–0.96)]. However, there was a stronger positive correlation between Martin’s LDL-c equation and the direct measurement in determining levels of LDL-c compared to Friedewald’s equation and the direct method

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