Understanding Medical Research
Medical studies can help us understand health, but their findings can be easy to misread. These resources explain common study types, results, and limitations in plain language. Learn to navigate scientific literature.
How to read a study
Start with the abstract for a summary, but don't stop there. Review the methods to see who was studied and how. Look at the results for the raw data, and the discussion for the authors' interpretation of what it all means.
Different kinds of research
Understanding the difference between qualitative, quantitative, observational, and experimental research is key. Randomized controlled trials (RCTs) are often considered the gold standard for clinical evidence.
What do the numbers mean?
Numbers provide the statistical weight for study findings. Learn how to interpret p-values, confidence intervals, relative risk, and absolute risk to see how significant the findings truly are for patients.
Questions to ask
Always ask: Who funded the study? Was the sample size large enough? How long was the follow-up? Were the endpoints clinically relevant to the patient's actual experience?
Trusted resources
Use these reliable sources to explore medical research and clinical trials:
- - National Library of Medicine — MedlinePlus: Understanding Medical Research (https://medlineplus.gov/understandingmedicalresearch.html)
- National Cancer Institute — Understanding Cancer Prognosis (https://www.cancer.gov/about-cancer/diagnosis-staging/prognosis)
- Cochrane — Evidence Essentials (https://www.cochrane.org/learn-and-discover)
- NHS — How to Read Health News (https://www.nhs.uk/conditions/nhs-health-check/)
- National Center for Complementary and Integrative Health — Know the Science (https://www.nccih.nih.gov/health/know-science)
These links are for general education, not personal medical advice. Discuss health decisions with a qualified healthcare professional.