Influence of Psychosocial Factors and Habitual Behavior in Temporomandibular Disorder–Related Symptoms in a Working Population in Japan

Table 2: Characteristics of Subjects

	Total	non-TRS	TRS	P-value
Number (%)	2203 (100.0)	1841 (83.6)	362 (16.4)
Women (%)	314 (14.3)	245 (13.3)	69 (19.1)	0.005^a
Mean age (SD)	41.2 (9.6)	41.4 (9.8)	40.1 (8.7)	0.018^b

TRS: TMD-related symptoms

^a achi-square test

^b t-test

The cut-off value of the total score for TRS screening (question items 1â€“4) was 8.5; participants with a score of ≥ 9.0 were assigned to the TRS group, while those scoring ≤ 8.0 were assigned to the non-TRS group.