What's the outcome of annual mammograms?

Detected cancers are smaller and less advanced than those found with biennial screening, shows research

Cancers detected in women who undergo annual mammography screening are smaller and less advanced than those found with biennial screening, US findings show.

Researchers reviewed the records of 232 women, aged 40-84, who were diagnosed with breast cancer at a mean age of 62.

Almost three-quarters of the cancers were invasive, in the study by Dr Sarah Moorman, of Michigan Medicine University of Michigan, and colleagues .

They found that 200 women (86%) underwent mammography screening annually (every 9-12 months), while 32 (14%) had biennial screening (every 21

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