Table 3

Spearman’s rank correlation coefficient scores and significance value for each histological variable

		Fibr	CIC	Vasc	Coll	Mono	GS	Symp
In the Symp column, symptom duration is correlated against each variable. The number (N) in this column is 19, as it only correlates with subjects and does not include controls.
Fibr, Fibrocyte changes; CIC, chronic inflammatory cells; Vasc, vascular changes; Coll, collagen arrangement; Mono, monocytes; GS, ground substance; Symp, symptom duration of subjects.
Fibr	Correlation coefficient	1	0.145	0.574	0.306	0.235	−0.044	−0.192
	Significance (2 tailed)		0.446	0.001	0.1	0.212	0.816	0.431
	N	30	30	30	30	30	30	19
CIC	Correlation coefficient		1	0.368	−0.024	0.649	−0.182	0.12
	Significance (2 tailed)			0.045	0.901	<0.001	0.337	0.624
	N		30	30	30	30	30	19
Vasc	Correlation coefficient			1	0.091	0.206	0.118	−0.083
	Significance (2 tailed)				0.634	0.276	0.536	0.736
	N			30	30	30	30	19
Coll	Correlation coefficient				1	0.209	0.239	0.376
	Significance (2 tailed)					0.268	0.202	0.112
	N				30	30	30	19
Mono	Correlation coefficient					1	0.066	0.367
	Significance (2 tailed)						0.73	0.122
	N					30	30	19
GS	Correlation coefficient						1	0.031
	Significance (2 tailed)							0.899
	N						30	19
Symp	Correlation coefficient							1
	Significance (2 tailed)
	N							19