Association between the malondialdehyde-modified low-density lipoprotein (MDA-LDL)/LDL cholesterol (C) ratio and the number of metabolic syndrome (MS) components. The MDA-LDL/LDL-C ratios were compared in patients with the indicated number of MS components. Data are expressed as means ± SD. Statistical analyses were performed by analysis of variance with Tukey-Kramer’s honestly significant difference test. *, p < 0.05 vs. 1, 2, or 3; **, p < 0.001 vs. 1, 2, or 3.