What is the Prevalence of Connective Tissue Disorders?

The prevalence of CTDs varies widely depending on the specific disorder and the population being studied. For example, rheumatoid arthritis affects approximately 1% of the global population, while systemic lupus erythematosus has a prevalence of about 20 to 150 cases per 100,000 individuals. The prevalence of these disorders can also be influenced by genetic factors, environmental exposures, and socioeconomic status.