Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

Observational evidence offers a huge volume of data to support health care, and can detect harms that randomised controlled trials may not be designed or powered to measure. Many research questions are outside the remit of clinical trials. Observational study designs include population-based longitudinal surveys, cross-sectional surveys, cohort studies, non-randomised controlled studies, case-control studies, case reports and case series. The fifth in a series looking at evidence-based medicine, this article explores observational evidence using the recent controversy surrounding the safety of pioglitazone as an example.

Type

Journal article

Journal

Diabetes and Primary Care

Publication Date

2011

Volume

13

Pages

284 - 289