Table 4.

Correlation coefficients between GDF-15 levels (log-transformed) and circulating inflammatory markers

	Total (N = 72)		Males (N = 37)		Females (N = 35)
	r	p	r	p	r	p
Glucose (mg/dL)	0.311	0.008*	0.474	0.003*	0.024	0.892
HbA1c (mmol/mol)	0.462	< 0.001*	0.536	< 0.001*	0.371	0.028*
CRP (mg/dL)	0.243	0.041*	0.248	0.145	0.357	0.035*
CRP-albumin ratio	0.252	0.034*	0.249	0.143	0.356	0.036*
D-dimer (ng/mL)	0.147	0.248	0.226	0.205	-0.115	0.538
Plasminogen activity (%)	-0.006	0.973	-0.096	0.670	0.119	0.639
Urate (mg/dL)	0.095	0.429	0.083	0.627	0.117	0.504
Platelet-lymphocyte ratio	-0.121	0.313	-0.074	0.664	-0.157	0.369
Neutrophil–lymphocyte ratio	0.039	0.744	0.076	0.657	0.025	0.888
IDO activity (Kyn/Trp)	0.253	0.049*	0.385	0.027*	0.096	0.627
Phospholipase 2 activity	-0.179	0.167	-0.438	0.011*	-0.278	0.153

Significant results are highlighted in bold

Pearson’s correlation: * significant correlation between variables (p-value < 0.05). CRP: C-reactive protein