title: Age-related associations between psychological characteristics and pain intensity among Japanese patients with temporomandibular disorder.
abstract: We investigated the relationship between pain intensity and psychosocial characteristics in patients with temporomandibular disorder (TMD). Participants with painful TMD, according to the Research Diagnostic Criteria for TMD (RDC/TMD), were recruited from our clinic and classified into six age groups: 15 to 24, 25 to 34, 35 to 44, 45 to 54, 55 to 64, and 65 to 85 years (Groups A through F, respectively). Self-reported present pain intensity and worst pain intensity during the past 6 months were ascertained using a numeric rating scale (0 to 10). Depression and somatization scores were evaluated using the RDC/TMD axis II questionnaire. Among women, worst pain intensity was significantly lower in Groups E and F than in Groups B and C (P < 0.05). In Groups A, C, and D, depression scores were significantly higher in women than in men (P < 0.05). Among women, depression score was significantly lower in Group F than in Groups A through C (P < 0.05). In Groups A through D, somatization scores were significantly higher for women than for men (P < 0.05). Depression score and TMD symptom severity appear to decrease with age in women.
authors.affiliation: Orofacial and Head Pain Clinic, Nihon University Hospital at Matsudo.
authors.forename: Osamu
authors.initials: O
authors.lastname: Komiyama
authors.forename: Ryoko
authors.initials: R
authors.lastname: Obara
authors.forename: Takashi
authors.initials: T
authors.lastname: Iida
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Nishimura
authors.forename: Masakazu
authors.initials: M
authors.lastname: Okubo
authors.forename: Takashi
authors.initials: T
authors.lastname: Uchida
authors.forename: Michiharu
authors.initials: M
authors.lastname: Shimosaka
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Narita
authors.forename: Hideo
authors.initials: H
authors.lastname: Niwa
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Kubo
authors.forename: Antoon
authors.initials: A
authors.lastname: De Laat
authors.forename: Misao
authors.initials: M
authors.lastname: Kawara
authors.forename: Yasuhide
authors.initials: Y
authors.lastname: Makiyama
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D011795:Surveys and Questionnaires; D013705:Temporomandibular Joint Disorders / Q000503:physiopathology* / Q000523:psychology*; D055815:Young Adult