when do you use mean and final when to use p-value or difference of value? when should i measure the difference of mean or endpoint when to use p value for a blood pressure test what is the difference between baseline blood pressure and final test when do you use the difference of mean change versus the difference of final values when to use the difference of means when to use the difference of the mean change or the difference of the final values? how to determine difference of the mean what is difference of mean and final values in blood pressure test what is the difference between a baseline and a final value bp blood test when to use difference of the baseline versus difference of the final value when is a blood pressure measured? when to use the difference of mean change in blood pressure when do you use the difference of mean change and final values? what is the difference between a baseline and a final when to use difference of mean change or difference of final values when to use the baseline change or the difference of the final values when do you use the difference of the mean and final values when to measure difference of mean and final blood pressure