The prevalence of rheumatoid arthritis (RA) is increasing in the world, but the rate of its increase is higher in lower- and middle-income countries (LMICs). However, the prevalence rate in South Asia (ie, the age-standardized prevalence rate of 204.8 per 100,000) surpasses that of many other LMIC regions such as sub-Saharan Africa and Southeast Asia. 1
Ali et al. (Sun,) studied this question.
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