A randomised controlled trial was undertaken to examine the

effect of exercise on overall mortality in people with resected colon cancer

who had completed chemotherapy. 445 participants were randomised to receive a

structured excercise program, and 444 received general health-education

materials. The results of the trial are given below:

To compare to proportion of deaths in the group receiving

the structured exercise program to those receiving the general health education

materials, which would you calculate?