Kobayashi D, et al. - Authors tested the presumption that patients with polymyalgia rheumatica (PMR) or giant cell arteritis (GCA) are at high risk for future cardiovascular diseases in Japan, where the incidence and severity of PMR and GCA are lowest. They conducted a propensity score matched cohort study at St. Luke's International Hospital, Tokyo, Japan, from 2003 to 2016. In the Japanese population, it was possible for patients with PMR or GCA not to have a higher risk of future cardiovascular diseases. These findings were supported by the sensitivity analyses and sample size calculation.