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A descriptive study of 205 users of the Central Laboratory of "Saturnino Lora Torres" Teaching Clinical Surgical Provincial Hospital in Santiago de Cuba was carried out from December, 2013 to the same period in 2014, in order to determine the reference levels of LDL cholesterol for the enzymatic method and identify estimates variations of analito according to 2 methodologies. Anderson Darling's parametric statistical test was applied. Male sex, young adult and the patients with normal weight prevailed. The reference values were established for LDL cholesterol by direct method from 1.37 to 4.89 mmol/L for the general population. A Pearson correlation coefficient of 0.82 was obtained between the direct method and the Friedewald formula. The obtained values were not contained in the established clinical range for this analito and although both methodologies were associated, such values were markedly inferior for the calculated method. [ABSTRACT FROM AUTHOR]