@otherside I agree with you. Doctors prescribing Fosamax will say it offers a 50% fracture reduction. What that means as an "absolute risk" is that if 100 women with severe bone loss take Fosamax for three years, instead of two people getting a hip fracture -- only one person will get a fracture, a 50% improvement. So, to prevent one hip fracture, 98 women take the drug with no fracture benefit.

From AI Assist: "Bisphosphonates are estimated to prevent 1 hip fracture for every 100 women treated over three years. However, they are more effective at reducing vertebral fractures, with a higher prevention rate."

Consumer reports article: https://www.consumerreports.org/cro/2012/04/popular-osteoporosis-drugs-come-with-mounting-concerns/index.htm