Chance variability hampers the interpretation of treatment trials. There are two main ways in which we can be misled: spurious findings may be produced by chance alone, or real effects may be hidden. P values and confidence intervals can help us to avoid these pitfalls when interpreting the findings from clinical trials.
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This record was last updated on 07/02/2016 and may not reflect the most current and accurate biomedical/scientific data available from NLM.
The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/9829062