Table 6.

Spearman’s rank correlation between serum TNF-α and physical activity, BMI, and symptom duration

		Achilles tendon status (grouped by gender)
		Total M	AT M	Control M	Total F	AT F	Control F
Physical Activitya	rho	0.5105	0.3846	0.9000	−0.2242	−0.6000	0.4000
	p	0.0255 19	0.1745	0.0374	0.5334	0.2080	0.6000
	n	19	14	5	10	6	4
BMIb	rho	−0.1338	−0.1607	−0.1429	0.2545	0.6071	0.2000
	p	0.5632	0.5672	0.7872	0.4500	0.1482	0.8000
	n	19	14	5	10	6	4
Pain: symptom durationc	rho		0.0335 14			−0.6773 7
	p		0.9094			0.0946
	n		14			7

^aMeasured in MET-hours/week, ^bmeasured in kg/m², ^cmeasured in months

Note: M male, F female, AT Achilles tendinopathy

Physical activity score was missing for 2 men and 1 woman, symptom duration was missing for 1 man with tendinopathy