title: Key factors associated with oral health-related quality of life (OHRQOL) in Hong Kong Chinese adults with orofacial pain.
abstract: OBJECTIVE
  To investigate key factors associated with oral health-related quality of life (OHRQOL) of Hong Kong Chinese adults with orofacial pain (OFP) symptoms.
  
  
  METHODS
  A cross-sectional study was conducted amongst a random sample of registered patients at a primary medical care teaching clinic in Hong Kong. Patients who were aged 35-70 years and had experienced OFP symptoms in the past 1 month were included. The OHRQOL was assessed by the Chinese version of the Oral Health Impact Profile (OHIP-14). A structured questionnaire on OFP symptoms and characteristics in the past 1 month, the depression and non-specific physical symptoms (NPS) scale in the research diagnostic criteria for temporomandibular disorders (RDC/TMD) questionnaire, and questions about professional treatment and dental attendance were administered before a standard clinical assessment. Negative binomial regression with forward stepwise selection was used to investigate key factors associated with the OHIP-14 additive score.
  
  
  RESULTS
  The mean OHIP-14 additive score of the 200 participants was 10.1 (SD 9.4). Regression analysis revealed that five independent factors were significantly associated with higher OHIP-14 additive scores (indicating a poorer OHRQOL): a higher pain scale rating in the past 1 month (p=0.001), OFP clinical classification as musculoligamentous/soft tissue (MST) or dentoalveolar (DA) instead of neurological/vascular (NV) (p<0.001), more frequent dental attendance (p=0.008), moderate/severe RDC/TMD depression (p=0.005) and moderate/severe RDC/TMD NPS with pain (p=0.003).
  
  
  CONCLUSIONS
  Various factors were associated with OHRQOL and could have implications for the improvement of OHRQOL in people in the community who have OFP symptoms.
authors: Guanghua School of Stomatology and Institute of Stomatological Research, Sun Yat-sen University, 56 Lingyuan Xi Road, Guangzhou, PR China. zcheche@gmail.com
authors: Jun
authors: J
authors: Zheng
authors: May C M
authors: MC
authors: Wong
authors: Cindy L K
authors: CL
authors: Lam
mesh_terms: D000328:Adult; D000368:Aged; D001294:Attitude to Health; D002054:Burning Mouth Syndrome / Q000523:psychology; D003430:Cross-Sectional Studies; D003729:Dental Care / Q000706:statistics & numerical data; D003863:Depression / Q000523:psychology; D004522:Educational Status; D005157:Facial Pain / Q000523:psychology*; D005260:Female; D006723:Hong Kong; D006801:Humans; D007182:Income; D057187:Independent Living; D008297:Male; D017533:Marital Status; D008410:Masticatory Muscles / Q000503:physiopathology; D008875:Middle Aged; D009909:Oral Health; D010147:Pain Measurement; D011788:Quality of Life; D013001:Somatoform Disorders / Q000523:psychology; D013705:Temporomandibular Joint Disorders / Q000523:psychology