Reoperation for bleeding
One comparative study found that Witnesses were less likely to need
reoperation for bleeding than the control group (3.7 vs 7.5%, p=0.01,
respectively15). The other 6 studies that compared the
two groups found no difference in this
outcome44,47-51. Five non-comparative studies found
the following percentages of patients requiring reoperation for
bleeding: 043, 2.252,
54, 1057 and
11.4%53. Again, the different surgeries in the
studies may account for the differences, but the results suggest a low
risk of reoperation for bleeding in the Witness population.