Aging with multimorbidity: A systematic review of the literature

► Multimorbidity affects more than half of the elderly population. ► Prevalence increases in very old persons, women and people from lower social classes. ► Very little is known about risk factors for multimorbidity (i.e., genetical or biological factors). ► Disability, poor quality of life, high health care utilization are consequences of multimorbidity. ► Data are insufficient for evidence-based care of patients with multimorbidity.