[The prevalence of temporomandibular disorder symptoms in 898 university students and its relationship with psychological distress and sleep quality].
OBJECTIVE
To investigate the prevalence of temporomandibular disorders(TMD) symptoms, psychological distress and sleep quality in a population of Chinese university students, and discuss the relationship between psychological distress, sleep quality and TMD symptoms.


METHODS
A total of 898 stomatological university students from 5 Chinese universities(342 males and 556 females with a mean age of 20.5 years) were included in the study. Self-reported TMD symptoms using diagnostic criteria for temporomandibular disorders symptom questionnaire were collected. Depression, anxiety and stress scales-21(DASS-21) and Pittsburgh sleep quality index(PSQI) were used to measure psychological distress and sleep quality.


RESULTS
61.9% (556/898) of the students had TMD symptoms. The most common symptoms were pain and clicking of joint, with a prevalence of 42.3% (380/898) and 34.2% (307/898), respectively. The prevalence of depression, anxiety, stress and sleep quality among the students who had TMD symptoms was 33.5%(186/556), 63.1%(351/556), 29.5%(164/556) and 30.2%(243/556), respectively, which was significantly higher than those who had no TMD symptoms(24.3% [83/342], 48.5% [166/342], 21.6%[74/342] and 21.9%[75/342])(P<0.05). Stepwise logistic regression analysis demonstrated that anxiety (OR 1.57, 95%CI 1.14-2.15) and female(OR 1.57, 95%CI 1.19-2.08) were possible risk indicators for TMD symptoms(P<0.05).


CONCLUSIONS
Chinese university students reported a high prevalence of TMD symptoms, which may have a correlation with psychological distress symptoms such as anxiety.
Center for TMD & Orofacial Pain, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
W D
WD
Xia
Center for TMD & Orofacial Pain, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
K Y
KY
Fu
Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu 610041, China.
W X
WX
Lu
Department of Stomatology, The 210th Hospital of Chinese People's Liberation Army, Dalian Liaoning 116000, China.
C M
CM
Zhao
Department of Endodontics, School of Stomatology, Wuhan University, Wuhan 430079, China.
H Y
HY
Yang
Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine & Shanghai Research Institute of Stomatology & Shanghai Key Laboratory of Stomatology.
Z X
ZX
Ye
D001007:Anxiety; D044466:Asian People; D003863:Depression; D005260:Female; D006801:Humans; D008297:Male; D010146:Pain; D015995:Prevalence; D012307:Risk Factors; D057566:Self Report; D013315:Stress, Psychological; D013334:Students; D011795:Surveys and Questionnaires; D013705:Temporomandibular Joint Disorders / Q000453:epidemiology*; D014495:Universities; D055815:Young Adult