title: Common pitfalls in statistical analysis: "P" values, statistical significance and confidence intervals.
abstract: In the second part of a series on pitfalls in statistical analysis, we look at various ways in which a statistically significant study result can be expressed. We debunk some of the myths regarding the 'P' value, explain the importance of 'confidence intervals' and clarify the importance of including both values in a paper.
authors: Department of Anaesthesiology, Tata Memorial Centre, Mumbai, Maharashtra, India.
authors: Priya
authors: P
authors: Ranganathan
authors: Department of Surgical Oncology, Division of Thoracic Surgery, Tata Memorial Centre, Mumbai, Maharashtra, India.
authors: C S
authors: CS
authors: Pramesh
authors: International Drug Development Institute, Hasselt University, Diepenbeek, Belgium.
authors: Marc
authors: M
authors: Buyse
keywords: Biostatistics; bias (epidemiology); confidence interval