Disparities in incidence and mortality vary with the direction and magnitude of interprovincial migration, indicating that household-registered residency-based registration overestimates lung cancer burden in high-immigration regions and underestimates it in high-emigration regions. We recommend transitioning to resident population-based registration to improve the accuracy of lung cancer burden estimates of cancer surveillance, particularly in regions with substantial migrant populations.
Hao et al. (Mon,) studied this question.