How Brazil counts cancer: a national estimate every three years, built from regional registries
Brazil does not have a single national register that counts every cancer. The national cancer institute, INCA, publishes an estimate every three years of how many new cancers to expect, built from the regional registries and from death certificates. The current edition covers 2026 to 2028 and expects about 781,000 new cancers a year, or about 518,000 if the common skin cancers are left out.
More detail
INCA's first Estimativa appeared in 1995, and it describes its current method as analogous to the one IARC uses for GLOBOCAN; the main inputs are the population-based cancer registries (Registros de Câncer de Base Populacional, RCBP) and the national mortality information system (SIM). Where a state or capital has consolidated registry data, short-term prediction models are fitted; elsewhere INCA applies the registry's incidence-to-mortality ratio, or the median ratio of its region, to modelled 2026 mortality. The 2026 to 2028 edition, launched on World Cancer Day, 4 February 2026, applies corrections for under-registration of both deaths and cases, and INCA states that its editions should not be compared directly as a time series, because better data and revised methods move the numbers. Non-melanoma skin cancer is estimated at 263,280 new cases a year (136,180 in men, 127,100 in women) and is presented separately because of its high incidence and low lethality.