Stressful negative life events and amalgam-related complaints

Authors

  • Anna Sundström,

    1. Centre for Population Studies/Ageing and Living Conditions Programme, Umeå University, Umeå, Sweden
    2. Department of Psychology, Umeå University, Umeå, Sweden
    Search for more papers by this author
  • Jan Bergdahl,

    1. Department of Psychology, Umeå University, Umeå, Sweden
    2. Institute of Clinical Dentistry, University of Tromsø, Tromsø, Norway
    3. Public Dental Service Competence Centre of Northern Norway (TkNN), Tromsø, Norway
    Search for more papers by this author
  • Lars Nyberg,

    1. Centre for Population Studies/Ageing and Living Conditions Programme, Umeå University, Umeå, Sweden
    2. Department of Radiation Sciences and Integrative Medical Biology Section, Umeå University, Umeå, Sweden
    Search for more papers by this author
  • Maud Bergdahl,

    1. Institute of Clinical Dentistry, University of Tromsø, Tromsø, Norway
    2. Public Dental Service Competence Centre of Northern Norway (TkNN), Tromsø, Norway
    Search for more papers by this author
  • Lars-Göran Nilsson

    1. Centre for Population Studies/Ageing and Living Conditions Programme, Umeå University, Umeå, Sweden
    2. Department of Psychology, Stockholm University, Stockholm, Sweden
    Search for more papers by this author

Anna Sundström, Centre for Population Studies/Ageing and Living Conditions Programme, Umeå University, S-901 87 Umeå, Sweden
Tel.: +46-90-7866139
Fax: +46-90-7866958
e-mail: anna.sundstrom@ddb.umu.se

Abstract

Sundström A, Bergdahl J, Nyberg L, Bergdahl M, Nilsson L-Göran. Stressful negative life events and amalgam-related complaints. Community Dent Oral Epidemiol 2011; 39: 12–18. © 2010 John Wiley & Sons A/S

Abstract

Objectives:  The role of stressful life events in the onset of self-reported amalgam-related complaints is unclear. The aim of this study was to examine the relationship between life events and amalgam-related complaints.

Method:  The participants were selected from a longitudinal population-based study. One-to-one matching of 337 participants with amalgam-related complaints to 337 participants without such complaints was performed. For 81 of the participants with amalgam-related complaints and their matched controls, data was also available approximately 5 years before the onset of complaints, making longitudinal analysis possible. All participants completed questionnaires assessing the occurrence of 55 life events.

Results:  The results showed that many participants with amalgam-related complaints experienced negative life events before and at the onset of amalgam-related complaints. They also reported more unexpected and uncontrollable events difficult to adjust to in comparison with controls. The groups did not differ on positive or neutral life events. Somatic illness or surgical operation was the most common life event. Death of a very close family member and a major change in financial situation were also commonly reported.

Conclusions:  This study indicates that adverse negative life events could play a vital role in understanding and explaining amalgam-related complaints.

Ancillary