It is well known that both mental health conditions (MHCs)1 and low income2 increase the risk for communicable and non-communicable diseases. However, previous studies have not comprehensively investigated potential interactions in the effects of mental disorders and income on physical health. In their Article, Linda Ejlskov and colleagues assessed the risks of a broad range of physical health conditions (PHCs) across income strata in people with and without MHCs.3 According to their results, MHCs and low income seem to operate as independent, additive risk factors, with some notable exceptions.

