Heterogeneity in end of life health care expenditure trajectory profiles

•Group based trajectory modelling models heterogeneity in end of life expenditures.•Group based trajectory models are extended to generalised linear models framework.•End of life expenditure profiles are characterised by 4 distinct trajectory groups.•Morbidities predict membership to and alter end of life expenditure trajectories.•The dynamics of age, morbidity and time-to-death determine expenditure trajectories.