Shbeeb, Izzat

ObjectiveTo investigate the use of glucocorticoids (GCs) and related adverse events (AEs) in a long‐term, geographically defined cohort of patients with polymyalgia rheumatica (PMR).MethodsUsing a population‐based inception cohort, details of GC therapy were abstracted from medical records of all patients diagnosed with PMR in 2000–2014. Age‐ and sex‐matched comparators without PMR were identified from the same underlying population. Cumulative and daily dosage of GC, rate of disease relapse, occurrence of GC‐related AEs, and rate of GC discontinuation were analyzed.ResultsThe study included 359 patients with PMR and 359 comparators. The median time to taper below 5 mg/day for 6 months was 1.44 years (95% confidence interval [95% CI] 1.36–1.62), while the median time to permanent discontinuation was 5.95 years (95% CI 3.37–8.88). The mean ± SD cumulative dose of GC at 2 and 5 years was 4.0 ± 3.5 grams and 6.3 ± 9.8 grams, respectively. The mean ± SD daily dose of GC at 2 and 5 years was 6.1 ± 7.6 mg/day and 7.2 ± 9.5 mg/day, respectively. There were no differences in rates of AEs between patients with PMR and comparators for diabetes mellitus, hypertension, hyperlipidemia, or hip, vertebral, or Colles fractures (P > 0.2 for all). Cataracts were more common in patients with PMR than comparators (hazard ratio 1.72 [95% CI 1.23–2.41]).ConclusionRelapse rates in PMR are highest in the early stages of therapy. Despite often protracted therapy, with the exception of cataracts, the rates of studied morbidities linked to GC are not more common in PMR than comparators.

ObjectiveTo determine time trends in the incidence and survival of polymyalgia rheumatica (PMR) over a 15‐year period in Olmsted County, Minnesota, and to examine trends in incidence of PMR in the population by comparing this time period to a previous incidence cohort from the same population base.MethodsAll cases of incident PMR among Olmsted County, Minnesota residents in 2000–2014 were identified to extend the previous 1970–1999 cohort. Detailed review of all individual medical records was performed. Incidence rates were age‐ and sex‐adjusted to the US white 2010 population. Survival rates were compared with the expected rates in the population of Minnesota.ResultsThere were 377 incident cases of PMR during the 15‐year study period. Of these, 64% were female and the mean age at incidence was 74.1 years. The overall age‐ and sex‐adjusted annual incidence of PMR was 63.9 (95% confidence interval [95% CI] 57.4–70.4) per 100,000 population ages ≥50 years. Incidence rates increased with age in both sexes, but incidence fell after age 80 years. There was a slight increase in incidence of PMR in the recent time period compared to 1970–1999 (P = 0.063). Mortality among individuals with PMR was not significantly worse than that expected in the general population (standardized mortality ratio 0.70 [95% CI 0.57–0.85]).ConclusionThe incidence of PMR has increased slightly in the past 15 years compared to previous decades. Survivorship in patients with PMR is not worse than in the general population.