**Note:** If you have trouble viewing videos in Internet Explorer, try Chrome or another Internet browser

Absolute & Relative Risk Reduction

- How to calculate relative risk reduction (video 3:12 min) Terry Shaneyfelt, UAB School of Medicine

Confidence Intervals

- Confidence intervals (video 5 min) Terry Shaneyfelt, UAB School of Medicine

Forest Plots

- How to interpret a forest plot (video 5:33 min) Terry Shaneyfelt, UAB School of Medicine

Intention-to-Treat

- Intention-to-treat analysis. What is it and why is it important? (video 4:44 min) Terry Shaneyfelt, UAB School of Medicine
- Intention to treat concept: a review Perspect Clin Res. 2011 Jul-Sep; 2(3): 109–112

Number Needed to Treat (NNT)

- NNT calculator ClinCalc
- How to calculate the Number Needed to Treat (video 3.48 min) Terry Shaneyfelt, UAB School of Medicine

Sensitivity and Likelihood Ratios

- Likelihood ratios CEBM
- How to calculate sensitivity (video 3:52 min) Terry Shaneyfelt, UAB School of Medicine
- How to calculate specificity (video 3:28 min) Terry Shaneyfelt, UAB School of Medicine

- NICE Glossary National Institute for Health Care Excellence