A prospective case-control study from Sweden has found long-term benefits of regular mammography screening, including a positive impact on reducing mortality. According to their data, 414 women needed to undergo screening for 7 years to prevent 1 breast cancer death. After 29 years of follow-up, the researchers found that approximately 414 women needed to undergo screening every 2 or 3 years over a 7-year period to prevent 1 breast cancer death.
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