Measuring the burden of comorbidity for ischaemic heart disease and four common non-communicable diseases in Iran, 1990-2017: a modelling study based on global burden of diseases data.

Of the four comorbidities studied, the highest burden was due to the coexistence of MDD with IHD. Our results highlight the importance of addressing the burden of comorbidities when studying the burden of IHD or any other non-communicable disease.