Each year, more than 2 million women are diagnosed with breast or cervical cancer, yet where a woman lives, her socioeconomic status and agency largely determines whether she will develop one of these cancers and will ultimately survive. In regions with limited resources, fragile or fragmented health systems, cancer contributes to the cycle of poverty. There are proven and cost-effective interventions for both these common cancers, yet for so many women access to these is beyond reach. These inequities highlight the urgent need for sustainable investments in the entire spectrum of cancer control, from prevention to palliative care, and in the development of high-quality population-based cancer registries, in low-and middle-income countries. In this first Series paper we describe the burden of breast and cervical cancer with an emphasis on global and regional trends in incidence, mortality and survival, and the impact, particularly among socioeconomically disadvantaged women in different settings.

Among US women diagnosed with invasive breast cancer, the likelihood of diagnosis at an early stage, and survival after stage I diagnosis, varied by race and ethnicity. Much of the difference could be statistically accounted for by intrinsic biological differences such as lymph node metastasis, distant metastasis, and triple-negative behavior of tumors.