Multimorbidity has become a major societal issue. The number of people living with several chronic conditions is on the rise due to complex disease interactions, new treatment options and complex disease and increasing life expectancy.

The highly specialised health care system constitutes a challenge to multimorbidity care, as each condition must be treated in accordance with disease-specific guidelines, whereas no clinical guidelines govern multimorbidity as a whole. This often results in fragmented care for the individual patient. 

Multiple chronic conditions are mostly treated in general practice. Therefore, it is important to include general practice in the evidence on the treatment, prognosis and development of multimorbidity. The general practitioner is also used to dealing with a multitude of physical, psychological and social issues. 

The group engages in register-based research and has conducted studies in close collaboration with a wide range of international partners. The group has developed the Danish Multimorbidity Index, which categorises 39 physical and mental disorders at population level in both primary and secondary care.