Is the incidence of rheumatoid arthritis rising?: Results from Olmsted County, Minnesota, 1955–2007

Abstract

Objective. To examine trends in the incidence and prevalence of rheumatoid arthritis (RA) from 1995 to 2007.Methods. To augment our preexisting inception cohort of patients with RA (1955-1994), we assembled a population-based incidence cohort of individuals >18 years of age who first fulfilled the American College of Rheumatology 1987 criteria for the classification of RA between January 1, 1995 and December 31, 2007 and a cohort of patients with prevalent RA on January 1, 2005. Incidence and prevalence rates were estimated and were age-and sex-adjusted to the white population in the US in 2000. Trends in incidence rates were examined using Poisson regression methods.Results. The 1995-2007 incidence cohort comprised 466 patients (mean age 55.6 years), 69% of whom were female and 66% of whom were rheumatoid factor positive. The overall age-and sex-adjusted annual RA incidence was 40.9/100,000 population. The ageadjusted incidence in women was 53.1/100,000 population (versus 27.7/100,000 population in men). During the period of time from 1995 to 2007, the incidence of RA increased moderately in women (P ‫؍‬ 0.02) but not in men (P ‫؍‬ 0.74). The increase was similar among all age groups. The overall age-and sex-adjusted prevalence on

Incidence of Rheumatoid Arthritis in Sweden: A Nationwide Population‐Based Assessment of Incidence, Its Determinants, and Treatment Penetration

“…More recent studies suggest a change in the declining trend and report an increase in RA incidence during the last decade, with no clear trends in age at RA onset (3,4).…”

“…With few exceptions (5,6), available studies on RA incidence (3,4,(7)(8)(9)(10)(11)(12) have based their incidence estimates on a few hundred individuals who (or whose medical records) have been evaluated against prevailing RA classification criteria (see Supplementary Appendix A for study details, available in the online version of this article at http:// onlinelibrary.wiley.com/doi/10.1002/acr.21900/abstract). Although such designs may provide good estimates of the incidence of defined RA in the study area, the extent to which such data also provide good estimates of the incidence of physician-diagnosed RA (and thereby "real life" occurrence of disease) on a national level is less clear.…”

Disease‐specific knowledge and clinical skills required by community‐based physiotherapists to co‐manage patients with rheumatoid arthritis

“…Data from the 2007-2008 Australian National Health Survey indicate that 2.1% of Australians self-reported a diagnosis of RA (3). Recent projections point to the increasing incidence of RA among women (4), while the prevalence is expected to double in Australia by 2050 (5). These data highlight the need to implement contemporary, evidence-based health policy and clinical practice frameworks to facilitate optimal management of RA, now and in the future.…”

Co-Morbidity of Cardiovascular Diseases and Rheumatoid Arthritis

“…As per a survey data internationally the prevalence of RA is believed to range from 0.4 to 1.3% [52,53] also on the basis of Rochester Epidemiology Project it was found that there was increase in RA among female individuals annually and comparatively reduction of about 0.5% was found in male individuals [54]. Life time risks as per that epidemiology report were estimated about 4% in female and 3% in male [55].…”