Evidence
Evidence is the available body of facts or information indicating whether a belief or proposition is true or valid. In the context of medicine, evidence is often used to determine the effectiveness of treatments, interventions, and preventive measures. This is often referred to as evidence-based medicine.
Definition[edit | edit source]
Evidence in medicine is the information gathered from clinical trials, observational studies, and other research methodologies. This information is used to make informed decisions about the care of individual patients and the delivery of health services. The quality of evidence can vary, and it is often categorized into levels of evidence.
Levels of Evidence[edit | edit source]
Levels of evidence are often depicted as a pyramid, with the highest quality evidence at the top. The levels, from highest to lowest, are:
- Systematic reviews and meta-analyses
- Randomized controlled trials
- Cohort studies
- Case-control studies
- Cross-sectional studies
- Case reports and case series
- Expert opinion and laboratory studies
Evidence-Based Medicine[edit | edit source]
Evidence-based medicine (EBM) is the conscientious, explicit, and judicious use of current best evidence in making decisions about the care of individual patients. EBM integrates individual clinical expertise with the best available external clinical evidence from systematic research.
Importance of Evidence in Medicine[edit | edit source]
Evidence is crucial in medicine as it helps to:
- Determine the effectiveness of treatments and interventions
- Inform guidelines and policies
- Improve patient outcomes
- Reduce harm and waste in healthcare
Challenges in Using Evidence[edit | edit source]
While evidence is crucial in medicine, there are several challenges in its use. These include:
- Publication bias: Studies with positive results are more likely to be published than those with negative results.
- Conflicts of interest: Researchers may have financial or other interests that could influence the results of their studies.
- Quality of evidence: Not all evidence is of high quality. Poorly designed studies can produce misleading results.
See Also[edit | edit source]
| Evidence Resources | |
|---|---|
|
 |
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
