Table 3

Correlations between functional and structural assessments of endothelial function.

Arterial stiffness

Carotid intima-media thickness


Microvascular endothelial function

ACh (%)

-0.027 (P = 0.729)

-0.159 (P = 0.043)*

SNP (%)

0.049 (P = 0.524)

-0.055 (P = 0.487)

Macrovascular endothelial function

FMD (%)

0.170 (P = 0.028)*

-0.131 (P = 0.104)

GTN (%)

0.025 (P = 0.671)

-0.294 (P < 0.001)**


Data displayed as Spearman's rho coefficient (P value). *Significant at P < 0.05; **significant after Bonferroni adjustment for eight comparisons at P < 0.006. ACh, acetylcholine; SNP, sodium nitroprusside; FMD, flow-mediated dilatation; GTN, glyceryl-trinitrate mediated dilatation.

Sandoo et al. Arthritis Research & Therapy 2013 15:R107   doi:10.1186/ar4287

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