One might think that performing a mammogram once each year—as opposed to once every three years—would triple the cost per life saved. But according to Table 6, performing the exam annually raises the...

One might think that performing a mammogram

once each year—as opposed to once every three

years—would triple the cost per life saved. But

according to Table 6, performing the exam annually

raises the cost per life-year saved by about 40 times.

Does this make sense? Explain.