Kim et al. (1) reviewed 418 articles published in 10 well established dental journals between 1995 and 2009 with the aim to assess the level of statistical errors and to identify the major source of statistical errors in dental research articles.
Of the 418 articles 111 (27%) presented insufficient information on the statistical analysis. It was not possible to assess whether the use of statistics was appropriate or not. Of the remaining 307 articles 158 (52%) contained at least one misuse of statistics or a statistical error.
1. Kim JS, Kim DK, Hong SJ. Assessment of errors and misused statistics in dental research. Int Dent J 2011;3:163-167.