Question

We first calculated the number of patients needed for such a study on the basis of the findings reported by benoni et al [15] who in a pilot study had found an average reduction in blood loss of 255 ml in patients receiving tranexamic acid. A power analysis predicted that the inclusion of at least 36 patients would provide 90% power at 5%

Answer 1

Answer:

We first calculated the number of patients needed for such a study on the basis of the findings reported by benoni et al [15] who in a pilot study had found an average reduction in blood loss of 255 ml in patients receiving tranexamic acid. A power analysis predicted that the inclusion of at least 36 patients would provide 90% power at 5%