A pilot study on biomarkers for tendinopathy: lower levels of serum TNF-α and other cytokines in females but not males with Achilles tendinopathy

Table 9 Spearman correlations between TNF-α and other cytokines

		Spearman’s correlations with TNF-α (grouped by gender and tendon status)
Analyte (pg/mL)		Total M (n = 21)	AT M (n = 15)	Control M (n = 6)	Total F (n = 11)	AT F (n = 7)	Control F (n = 4)
TNF-α	rho	1	1	1	1	1	1
	p
IL-1β	rho	0.5182	0.2321	1.0000	0.7182	0.3571	0.8000
	p	0.0161	0.4051	0.0000	0.0128	0.4316	0.2000
bFGF	rho	0.6442	0.5286	0.9429	0.2091	0.3214	0.2000
	p	0.0016	0.0428	0.0048	0.5372	0.4821	0.8000
INF-γ	rho	0.7067	0.6416	0.8857	0.7182	0.6786	1.0000
	p	0.0003	0.0099	0.0188	0.0128	0.0938	0.0000
PDGF-BB	rho	0.1312	−0.2536	0.7143	0.7182	0.4286	0.4000
	p	0.5709	0.3618	0.1108	0.0128	0.3374	0.6000
VEGF	rho	0.6844	0.5786	1.0000	0.1455	0.3929	0.4000
	p	0.0006	0.0238	0.0000	0.6696	0.3833	0.6000

ISSN: 2052-1847