Category: Blog

P-Value

30 July 2017 Steve Mathieu Evidence-based Medicine One comment

P-values – interpreting the evidence series

Critical Appraisal – Glossary

27 May 2017 Steve Mathieu Evidence-based Medicine Leave a comment

Rather than reinvent the wheel, we are delighted to include a link to the RCEM Critical Appraisal Dictionary. The RCEM learning site provides excellent open access educational resources, including critical care appraisal modules

Type 1 and 2 Errors

19 May 2017 Steve Mathieu Evidence-based Medicine Leave a comment

In statistical hypothesis testing, a type I error is the incorrect rejection of a true null hypothesis (a “false positive”), while a type II error is incorrectly retaining a false null hypothesis (a “false negative”). The more you try and avoid a Type I error (false positive), the more likely a Type II error (false negative) may happen. Researchers have found that an alpha level of 5% is a good balance between these two issues

Fragility Index

30 April 2017 Steve Mathieu Evidence-based Medicine 5 comments

Fragility Index is the minimum number of patients whose status would have to change from a “non-event” (not having the primary endpoint) to an “event” (having the primary end point) in order to turn a statistically significant result to a nonsignificant result. It is a simple metric to calculate and use.

Reporting the Fragility Index in RCTs may help readers make more informed decisions about the confidence warranted by RCT results

Critical Care Symposium 2017

27 April 2017 Steve Mathieu Evidence-based Medicine Leave a comment

Slides and handout from the the ‘Critical Care Game Changers’ (updates in critical care) presentation at Critical Care Symposium 2017

The 2016 TBL Round Up

23 December 2016 Duncan Chambler Editorial, News Leave a comment

All of us on the editorial team would like to wish our subscribers, followers and readers our very best wishes for this festive season and the year ahead.

We’re taking our usual two week break, and we shall return in 2017 with more #FOAMed.

A Week of POCUS

18 November 2016 Duncan Chambler Editorial Leave a comment

We’ve covered five key papers from a range of researchers with a focus on Point-of-Care Ultrasound. This has been complemented by the excellent ‘Introduction to…’ blog posts from Adrian and Segun.