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Biologically plausible and evidence-based risk intervals in immunization safety research
Ali Rowhani-Rahbar1, Nicola P Klein, Cornelia L Dekker
1Kaiser Permanente Vaccine Study Center, Oakland, CA 94612, United States. ali.x.rowhani-rahbar@kp.org
Vaccine
|July 28, 2012
Summary
Defining accurate risk intervals is crucial for vaccine safety studies. This research presents a systematic method to establish evidence-based risk intervals for adverse events following immunization (AEFI), improving study accuracy.
Area of Science:
- Immunization Safety Research
- Epidemiology
- Vaccinology
Background:
- Accurate risk intervals are essential for studying adverse events following immunization (AEFI).
- Incorrectly defined risk intervals can introduce bias into vaccine safety research.
- Limited formal methods exist for establishing evidence-based risk intervals.
Purpose of the Study:
- To present a systematic process for defining biologically plausible and evidence-based risk intervals for AEFIs.
- To establish risk interval estimates for febrile seizures and acute disseminated encephalomyelitis.
- To review methodological challenges in determining risk intervals for immunization safety studies.
Main Methods:
- Systematic process development for risk interval estimation.
- Application of the process to specific AEFIs: febrile seizures and acute disseminated encephalomyelitis.
- Review of methodological considerations for future risk interval determination.
Main Results:
- A systematic process was developed to define risk intervals.
- Evidence-based risk interval estimates were generated for febrile seizures and acute disseminated encephalomyelitis.
- Methodological issues pertinent to risk interval determination were identified.
Conclusions:
- A systematic approach can define biologically plausible and evidence-based risk intervals for AEFIs.
- Accurate risk intervals are vital for unbiased immunization safety research.
- Further methodological refinement is needed for robust risk interval determination in vaccine safety studies.
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