This week I feature 2 sites I find very useful for clinical decision making and teaching.
First is MDCalc, a great online medical calculator with a primary focus on Emergency Medicine and Critical Care. You will find it featured prominently in this site's Clinical Links Rules/Resources section.
Second is the NNT. the NNT turns a critical and analytic eye to landmark research, reviews and meta-analyses. In a nutshell, they evaluate each paper and then calculate a Number Neede to Treat (or Harm) for the intervention. The Traffic Light infographic at the top of each review gives you a Go/No Go/Caution advisory about the paper's findings. Then there is a detailed explanation of how they reached their conclusions. See how they do it all here.
They have also begun to review Diagnostic Tests (Likelihood Ratios) and Risk Assessments.