Table 4.

Evaluation of correlation coefficient (r) among the variables obtained from magnetic resonance imaging.

	wTMD (n = 76)						pTMD (n = 58)						iTMD (n = 85)
r	SC of LPM	Effusion	ADDWR	ADDWoR	Disk deformity	Condylar degeneration	SC of LPM	Effusion	ADDWR	ADDWoR	Disk deformity	Condylar degeneration	SC of LPM	Effusion	ADDWR	ADDWoR	Disk deformity	Condylar degeneration
VC of LPM	0.424**	0.124	0.049	0.511**	1.000**	0.609**	−0.088	−0.016	−0.044	0.268*	1.000**	0.268*	0.385**	0.004	−0.029	0.464**	1.000**	0.520**
SC of LPM		0.044	0.183	0.476**	0.424**	0.323**		0.254	0.050	0.268*	−0.088	0.054		−0.041	−0.047	0.290**	0.385**	0.328**
Effusion			−0.076	0.186	0.124	0.157			−0.073	0.256	−0.016	−0.106			−0.008	0.344**	0.004	0.201
ADDWR				0.088	0.049	−0.057				−0.044	−0.044	0.106				0.031	−0.029	−0.013
ADDWoR					0.511**	0.564**					0.268*	0.414**					0.464**	0.553**
Disk deformity						0.609**						0.268*						0.520**

p-Value was considered as significant when p < 0.05 (*p < 0.05, **p < 0.01). When p-value was in the significant level, we bolded the number to highlight the results.

VC, volume change; SC, signal change; LPM, lateral pterygoid muscle; ADDWR, anterior disk displacement with reduction; ADDWoR, anterior disk displacement without reduction; r, correlation coefficient which was produced by the Spearman’s correlation test.