Epidemiology

The incidence of polymyalgia rheumatica (PMR) increases with age, typically occurring in those older than 50 years and rarely in younger individuals. In a population-based study conducted in Minnesota between 2000 and 2014, the age- and sex-adjusted annual incidence of PMR was 63.9/100,000 population aged ≥50 years.[2] The mean age at diagnosis was 74 years, and 64% of patients were women.[2]

Incidence appears highest in those of northern European descent.[3] PMR occurs in non-white populations, but the epidemiology has not been well studied in these populations. The incidence of PMR appears to be increasing both in the US and in Europe. A geographical gradient has been observed in Europe, decreasing from north to south: the highest incidence rates have been reported in Norway and the lowest rates in Italy, Spain, and Israel.[4][5]​ Cyclic fluctuations in the incidence of PMR have been observed, and there does not appear to be an increase in mortality associated with PMR.[2][6]​​[7]

Use of this content is subject to our disclaimer