Incidence of TMD higher in patients with depression

Depression

This large cohort study looked at whether depression is a risk factor of temporomandibular disorder (TMD). The study used claims data from The National Health Insurance program of Taiwan which covers more than 96% of its 23 million population. From the database 7,587 patients who are newly diagnosed individuals with depression and 30,197 comparison subjects were randomly selected from a non-depression cohort. Both groups were followed from 2000-1 until the end of 2008 to measure the incidence of TMD.

They found:

  • The incidence of TMD was 2.65 times higher in the depression cohort than in the non-depression cohort (6.16 versus 2.32 per 1000 person-years).
  • Cox’s proportional hazard ratio (HR) of TMD for the depression cohort was 2.21 (95% CI 1.83–2.66), after controlling for socio-demographic factors and other psychiatric comorbidities.
  • Women had higher risk to develop TMD than men:
    • HR 1.61, 95% CI 1.36–1.92 for women without depression
    • HR 3.54, 95% CI 2.81–4.45 for women with depression.

They concluded:

A temporal relationship between depression and TMD seems to exist. These results imply that dentists involved in the management of TMD need to be aware of the comorbidity of depression in these patients.

Liao CH, Chang CS, Chang SN, Lane HY, Lyu SY, Morisky DE, Sung FC. The risk of temporomandibular disorder in patients with depression: a population-based cohort study. Community Dent Oral Epidemiol. 2011 May 30. doi: 10.1111/j.1600-0528.2011.00621.x. [Epub ahead of print] PubMed PMID: 21623863

Share on Facebook Tweet this on Twitter Share on LinkedIn Share on Google+
Mark as read
Create a personal elf note about this blog
Profile photo of Derek Richards

Derek Richards

Derek Richards is the Director of the Centre for Evidence-based Dentistry, Editor of the Evidence-based Dentistry Journal, Consultant in Dental Public Health with Forth Valley Health Board and Honorary Senior Lecturer at Dundee & Glasgow Dental Schools. He helped to establish both the Centre for Evidence-based Dentistry and the Evidence-based Dentistry Journal. He has been involved with teaching EBD and a wide range of evidence-based initiatives both nationally and internationally since 1994.

More posts - Website

Follow me here –