Most of my research focus on cancer epidemiology and control, with studies being conducted in high-income countries as well as in low- and middle-income countries. A few illustrative examples of this work:

- Jointly with Dr. Valerie McCormack (from the International Agency for Research on Cancer, IARC/WHO) and other colleagues, I am conducting a multi-country study to investigate proximal and distal determinants of survival from breast cancer in sub-Saharan Africa (SSA). This study was initially funded by Susan G Komen and, more recently, by the US National Cancer Institute (NCI). This large multi-centric study has led to several seminal publications on disparities in survival after a breast cancer diagnosis in SSA and their man drivers.

- In collaboration with colleagues in Brazil we have investigated ethnic and socio-economic disparities in the prevalence of breast cancers diagnosed at a late (advanced) stage when prognosis is poorer and effective treatment options limited. We have also investigated the joint effects of race and socio-economic disadvantage on mortality from breast and cervical cancer within the Brazilian 100 million cohort.

This work is underpinned by a large number of collaborations both in the United Kingdom and overseas.