PT - JOURNAL ARTICLE ED - , TI - Understanding statistical terms: 1 AID - 10.1136/dtb.2009.01.0003 DP - 2009 Feb 01 TA - Drug and Therapeutics Bulletin PG - 22--24 VI - 47 IP - 2 4099 - http://dtb.bmj.com/content/47/2/22.short 4100 - http://dtb.bmj.com/content/47/2/22.full SO - Drug Ther Bull2009 Feb 01; 47 AB - An increasing number of statistical terms appear in journal articles and other medical information. A working knowledge of these is essential in assessing clinical evidence. With this in mind, we are producing a series of explanatory articles covering various statistical terms and their uses. This, the first article in the series, will focus on some of the most common terms used in randomised controlled trials.1