25 year-review finds no lives saved by annual mammography

Eideard

Annual mammography failed to reduce breast cancer mortality in women, ages 40 to 59, compared with physical examination or routine care, according to 25-year follow-up data from a Canadian screening program.

Women screened annually by mammography for 5 years had had a breast cancer mortality hazard of 1.05 compared with the control group during the screening period. During follow-up for a mean of 22 years, the mammography group had a breast cancer mortality hazard of 0.99 versus the control group. Neither value was statistically significant…

The findings suggest a need to reassess the value of screening mammography…

The publication drew a quick and forceful response from the American College of Radiology (ACR) and the Society of Breast Imaging (SBI). In a joint statement, officials of the two organizations characterized the results as “an incredibly misleading analysis based on the deeply flawed and widely discredited Canadian National Breast Screening Study (CNBSS).”

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