Informed consent in Ghana: what do participants really understand?
Z Hill1, C Tawiah-Agyemang, S Odei-Danso
1Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK. Zelee.hill@lshtm.ac.uk
Journal of Medical Ethics
|December 25, 2007
Summary
Most Ghanaian women in a vitamin A trial believed they received beneficial medication, not realizing capsules varied. Education and location influenced their knowledge, highlighting consent procedure needs.
Area of Science:
- Clinical Trials
- Public Health
- Nutrition Research
Background:
- Participant understanding is crucial for informed consent in clinical trials.
- Vitamin A supplementation trials aim to improve health outcomes in specific populations.
- Ghanaian women of reproductive age are a key demographic for nutritional interventions.
Purpose of the Study:
- To investigate Ghanaian women's perceptions of a vitamin A supplementation trial.
- To assess participants' awareness that not all trial capsules contained the same substance.
- To identify factors influencing this knowledge.
Main Methods:
- Qualitative data from 60 interviews and 12 focus groups explored trial perceptions.
- Quantitative survey of 1971 participants assessed knowledge of capsule variability.
- Fieldworker interviews and multi-level modeling identified factors associated with knowledge.
Main Results:
- Most participants knew they were in research but believed they received active, beneficial medication.
- Higher education levels and district of residence were associated with greater knowledge of capsule variability.
- Radio broadcasts positively impacted knowledge among those with some schooling; fieldworker characteristics did not.
Conclusions:
- Current consent procedures may be inadequate, especially for participants with limited education.
- Further research and discussion on improved consent processes are essential.
- Ensuring participant comprehension is vital for ethical and effective clinical research.
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