Table 1.

Demographic description and comparison of the mean and SDs of variables.

Total (n = 219)	wTMD group (n = 76)	pTMD group (n = 58)	iTMD group (n = 85)	p-Value	Post hoc analysis
Sex distribution
Male, n (%)	22 (28.95)	33 (56.90)	33 (34.12)	0.003	wTMD–pTMD, pTMD–iTMD
Female, n (%)	54 (71.05)	25 (43.10)	56 (65.88)	0.311	n.s.
Age (mean ± SD)	33.29 ± 14.15	35.78 ± 17.00	37.95 ± 17.84	0.471	n.s.
VAS (mean ± SD)	6.88 ± 1.94	5.74 ± 2.25	5.32 ± 2.90	<0.001	wTMD > pTMD = iTMD
TMD indexes
Neck PI (mean ± SD)	0.46 ± 0.50	0.10 ± 0.31	0.15 ± 0.36	<0.0001	wTMD > pTMD = iTMD
PI (mean ± SD)	0.29 ± 0.23	0.15 ± 0.15	0.17 ± 0.16	<0.0001	wTMD > pTMD = iTMD
DI (mean ± SD)	0.51 ± 0.27	0.46 ± 0.24	0.43 ± 0.23	0.073	n.s.
CMI (mean ± SD)	0.40 ± 0.23	0.31 ± 0.14	0.30 ± 0.17	0.001	wTMD > iTMD
Mouth opening (mm)
CMO (mean ± SD)	34.68 ± 11.29	33.48 ± 12.75	35.19 ± 10.07	0.672	n.s.
MMO (mean ± SD)	40.67 ± 11.26	38.97 ± 12.97	40.26 ± 10.10	0.674	n.s.
Eccentric movement (mm)
Protrusion (mean ± SD)	4.58 ± 2.43	5.00 ± 3.27	4.82 ± 2.59	0.669	n.s.
Rt. laterotrusion (mean ± SD)	6.83 ± 3.15	6.48 ± 3.99	6.96 ± 3.22	0.705	n.s.
Lt. laterotrusion (mean ± SD)	7.12 ± 2.94	7.28 ± 4.65	7.85 ± 3.82	0.443	n.s.

wTMD–pTMD, when the proportion of the presence of variable was significantly different between wTMD and pTMD groups; wTMD–iTMD, when the proportion of the presence of variable was significantly different between wTMD and iTMD groups; pTMD–iTMD, when the proportion of the presence of variable was significantly different between pTMD and iTMD groups; n.s., when there was no significant difference between groups; VAS, visual analog scale; TMD, temporomandibular disorder; PI, palpation index; DI, dysfunction index; CMI, craniomandibular index; CMO, comfortable mouth opening; MMO, maximum mouth opening; SD, standard deviation.