MS-2723

MS-2723

You have been asked to assist with the write-up of the data analysis section of a research paper on the topic of the effects of a new medication on blood pressure in patients over 60 years old. As part of this, you have been given the result of the sample size calculation, which determined the number of patients that needed to be recruited into the trial. One of the factors affecting this sample size was the fact that a power of 0.8 was selected.

What is the significance of selecting a power of 0.8 in the sample size calculation for this study on the effects of a new medication on blood pressure in patients over 60 years old?