Abbreviations
AR Absolute risk
ARR Absolute risk reduction
ARI Absolute risk increase
CI Confidence interval
CCT Controlled clinical trial
HR Hazard ratio
NNH Number needed to harm
NNT Number needed to treat
OR Odds ratio
P P value
RCT Randomised controlled trial
RR Relative risk
RRI Relative risk increase
RRR Relative risk reduction
WMD Weighted mean difference
Also see our Glossary page
- Case Studies
- Editor in Chief of the Norwegian Electronic Health Library discusses why BMJ Clinical Evidence was an essential purchase for their users
- Norwegian Electronic Health Library
- Norwegian Training Report - September 2007