Incidence of breast cancer falls with less HRT use, Canadian study confirmsBMJ 2010; 341 doi: https://doi.org/10.1136/bmj.c5307 (Published 27 September 2010) Cite this as: BMJ 2010;341:c5307
- Susan Mayor
The incidence of breast cancer in postmenopausal women in Canada has fallen as their use of combined hormone replacement therapy (HRT) has decreased, shows a study published on 23 September.
The publication in 2002 of results from the Women’s Health Initiative—showing that long term use of combined HRT was associated with a higher risk of breast cancer—led to major reductions in its use, followed by a decrease in the incidence of breast cancer in several countries (BMJ 2009;338:b2116, doi:10.1136/bmj.b2116).
The new study analysed data from several Canadian registries and a national health survey of women aged 50-69 years to see …