Facts about breast cancer in New Zealand 1. More than 3000 women a year are diagnosed with the disease – that’s eight women a day 2. Most of these women have no family history of breast cancer 3. Around 350 women in the pre-screening age group of 20 to 44 will be diagnosed with it in 2015 4. More than 600 women will die of the disease this year – that’s the size of a large primary school.