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Epidemiological research on marginalized groups implies major validity challenges; lesbian health as an example
Kirsti Malterud1, Mari Bjorkman, Mona Flatval
1Research Unit for General Practice, Unifob Health, Bergen, Norway. kirsti.malterud@isf.uib.no
Journal of Clinical Epidemiology
|December 17, 2008
Summary
Research on lesbian health faces significant validity challenges due to small populations and concealed identities. Findings require cautious generalization to avoid misinterpreting health risks in this minority group.
Area of Science:
- Epidemiology
- Public Health
- Sociology of Health
Background:
- Studies indicate increased health risks for lesbian women.
- Evidence-based practice necessitates understanding disease prevalences in marginalized groups.
- Research on marginalized populations presents ethical and methodological challenges.
Purpose of the Study:
- To explicate validity challenges in epidemiological research on minority groups.
- To examine specific issues in lesbian health research.
- To highlight the impact of normative assumptions and cultural contexts on research.
Main Methods:
- Case study approach.
- Analytic induction methodology.
- Focus on validity issues in minority health research.
Main Results:
- Demonstrated challenges include conceptual indistinctness, internal/external validity issues, confounders, and cultural context.
- Type II errors and problems with small population subgroups were identified.
- Measurement issues in small populations can lead to significant inferential errors regarding lesbian health.
Conclusions:
- Generalizing health findings to all lesbians or comparing them to women in general requires extreme caution.
- Similar caution is advised for studies on any minority group with concealable identities.
- Recognizing and addressing methodological limitations is crucial for accurate health research on marginalized populations.
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