Background Musculoskeletal knee pain is a large and costly problem, and meniscal tears make up a large proportion of diagnoses. ‘Special tests’ to diagnose torn menisci are often used in the physical ...

A systematic review identifies, appraises and synthesises all the empirical evidence from studies that meet prespecified eligibility criteria to answer a specific research question. As part of the ...

Introduction The concepts of evidence-based medicine are evolving as limitations of early models are addressed. In this editorial, we present a new model for evidence-based clinical decision making ...

Objective This study evaluates whether Taiwan’s national oral cancer screening programme, implemented in 1999, has led to a ...

In 1975, Fagan published a nomogram to help practitioners determine, without the use of a calculator or computer, the probability of a patient truly having a condition of interest given a particular ...

> Why then, can one desire too much of a good thing? > > William Shakespeare, As You Like It (1600) Rosalind’s question, as she is about to marry Orlando, is purely rhetorical—she thinks that one ...

Measures of association describe the strength of the relationship between an exposure (or intervention) and an outcome in clinical studies (randomised controlled trials [RCTs], cohort studies, and ...

Understanding the causes of deaths and how they can be prevented is critical for improving healthcare outcomes. At a population level, over-reporting or under-reporting of deaths can have a profound ...

### Summary box Access to data for drugs and vaccines has historically been fairly limited to journal article publications and hard-to-access and difficult to read regulatory reports.1 But the past ...

This article is part of a series of articles featuring the Catalogue of Bias introduced in this volume of BMJ Evidence-Based Medicine that describes attrition bias and outlines its potential impact on ...

Qualitative research has an important place within evidence-based health care (EBHC), contributing to policy on patient safety and quality of care, supporting understanding of the impact of chronic ...

Objectives To describe the proportion of transvaginal ultrasounds performed in a University Hospital of Buenos Aires (Argentina), requested upon a health check. Method Cross-sectional study of a ...