Final answer:
The categorization of the statement provided in the question is evidence of underuse in healthcare practices. Underuse refers to the fact that scientifically sound practices are not used as often as they should be.
Step-by-step explanation:
The categorization of the statement provided in the question is evidence of underuse in healthcare practices. Underuse refers to the fact that scientifically sound practices are not used as often as they should be. In this case, the example given is the biannual mammography screening for women aged 40 to 69 which is proven to be beneficial but performed less than 75 percent of the time.