Progress, challenges and ways forward supporting cancer surveillance in Latin America.

Population-based cancer registries (PBCRs) are the only means to provide reliable incidence and survival data as a basis for policy-making and resource allocations within cancer care. Yet, less than 3% and 10% of the respective populations of Central America and South America are covered by high-quality cancer registries. The Global Initiative for Cancer Registry Development provides support to improve this situation via the International Agency for Research on Cancer Regional Hub for Latin America. In this paper, we summarize activities (advocacy, technical assistance, training and research) over the last 5 years, their impact and current challenges, including the implementation of new PBCR in four countries in the region. Despite the favorable political support to cancer registration in many countries, the sustainability of cancer registration remains vulnerable. Renewed efforts are needed to improve data quality in Latin America while ensuring maximum visibility of the data collected by disseminating and promoting their use in cancer control.