Rheumatoid arthritis

Global, regional, and national burden of rheumatoid arthritis, 1990–2020, and projections to 2050: a systematic analysis of the Global Burden of Disease Study 2021

Lancet RheumatolPublished Systematic analysis of the Global Burden of Disease Study 2021

Authors' conclusion

Rheumatoid arthritis mortality has decreased globally over the past three decades. Global age-standardised prevalence rate and YLDs have increased over the same period, and the number of cases is projected to continue to increase to the year 2050.

Study context

Population
RA in 204 countries and territories, 1990 to 202098 prevalence and 25 incidence studies
Outcome
RA prevalence, deaths and DALYs by age, sex, year and location, with forecasted prevalence to 2050
Follow-up
2020
Methodological detailsBayesian meta-regression, Cause of Death Ensemble model (CODEm) mortality modelling, forecast to 2050 by logistic regression with Socio-Demographic Index
  • Bayesian meta-regression
  • CODEm mortality modelling
  • Forecast to 2050 by logistic regression with Socio-Demographic Index

Main finding

As reported in the abstract

RA burden, global
People with RA worldwide, million
17.6 (95% UI 15.8-20.3)
Age-standardised global prevalence rate, cases per 100 000 (186.8-241.1)
208.8
Increase in age-standardised prevalence since 1990, % (12.7-15.4)
14.1%
Age-standardised female-to-male prevalence ratio (2.40-2.47)
2.45
Age-standardised death rate per 100 000 (0.41-0.54)
0.47
Global deaths (33 500-44 000)
38 300
Decrease in age-standardised death rate 1990 to 2020, % (17.5-29.3)
23.8%
DALY count (2 320 000-3 860 000)
3 060 000
Age-standardised DALY rate per 100 000 (27.6-45.9)
36.4
Years lived with disability (YLDs) share of DALYs (68.3-81.0)
76.4%

Further findings

Smoking risk attribution for RA DALYs · 2020

Attributable to smoking
7.1% (95% UI 3.6-10.3)

Forecast people living with RA worldwide · 2050

Individuals, million
31.7 (95% UI 25.8-39.0)
  • Forecast

Original publication

Global, regional, and national burden of rheumatoid arthritis, 1990–2020, and projections to 2050: a systematic analysis of the Global Burden of Disease Study 2021. Lancet Rheumatol. Published 25 September 2023. doi:10.1016/s2665-9913(23)00211-4

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