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Nonresponse to a population-based postdisaster postal questionnaire study
Ajmal Hussain1, Lars Weisaeth, Trond Heir
1Norwegian Centre for Violence and Traumatic Stress Studies, N-0407 Oslo, Norway. ajmal.hussain@nkvts.unirand.no
Journal of Traumatic Stress
|August 1, 2009
Summary
Post-disaster studies may overrepresent individuals with severe trauma exposure. Non-participants in a tsunami survey reported less disaster impact and fewer posttraumatic stress reactions, suggesting potential study biases.
Area of Science:
- Disaster mental health research
- Survey methodology
- Trauma studies
Background:
- Post-tsunami research on Norwegian tourists is crucial for understanding disaster impact.
- Nonparticipation in surveys can introduce bias into research findings.
Purpose of the Study:
- To investigate nonparticipation in a postdisaster mail survey.
- To identify characteristics and reasons for nonparticipation among Norwegian tourists evacuated after the 2004 tsunami.
Main Methods:
- Telephone interviews were conducted with 171 nonparticipants from a random sample.
- Data collected included disaster exposure, posttraumatic stress reactions, and reasons for nonparticipation.
Main Results:
- Nonparticipants had less direct disaster exposure and lower perceived threat of death.
- Key reasons for nonparticipation included lack of interest/time (39.2%), lack of relevant experiences (32.2%), and emotional distress (15.2%).
Conclusions:
- Postdisaster studies may exhibit bias towards individuals with more severe disaster exposure and higher posttraumatic stress.
- Understanding nonparticipation is vital for improving the representativeness of disaster research.
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