Jadad scale
Jadad Scale
The Jadad Scale (pronunciation: /'jædæd 'skeɪl/), also known as the Jadad Scoring System, is a procedure used in epidemiology to independently assess the methodological quality of a clinical trial. It is named after its creator, Alex Jadad, a Colombian physician and researcher in the field of health informatics and global health.
Etymology
The term "Jadad Scale" is derived from the name of its creator, Dr. Alex Jadad. The word "scale" is from the Latin scala meaning "ladder", reflecting the tool's use in measuring or ranking the quality of clinical trials.
Description
The Jadad Scale is a five-point scale that evaluates the methodological quality of clinical trials based on three key aspects: randomization, double-blinding, and the account of all patients, including withdrawals and dropouts. Each aspect is scored with 0 or 1, except for double-blinding, which can be scored with 0, 1, or 2. The total score ranges from 0 to 5, with higher scores indicating better methodological quality.
Related Terms
- Randomization: The process of assigning trial subjects to treatment or control groups using an element of chance to determine the assignments in order to reduce bias.
- Double-blinding: A method used in clinical trials where neither the participants nor the experimenters know which group is receiving the experimental treatment.
- Clinical trial: A type of research that studies new tests and treatments and evaluates their effects on human health outcomes.
- Epidemiology: The study and analysis of the distribution, patterns and determinants of health and disease conditions in defined populations.
- Health informatics: The interdisciplinary field that uses health information technology to improve health care via any combination of higher quality, higher efficiency, new opportunities, and reduced expenses.
- Global health: A field of health care that considers the health needs of the people of the whole planet above the concerns of particular nations.
External links
- Medical encyclopedia article on Jadad scale
- Wikipedia's article - Jadad scale
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