User:Joshkidding/sandbox

=Epidemiology=

Limitaitons on epidemiology
Despite all the research, drawing conclusions in regards to the epidemiology is difficult due to the variability from different populations. The prevalence and incidence surveys could also be affected by diagnostic accuracy and survival time. Since there is no direct test to diagnose multiple sclerosis, improper or delayed diagnosis poses another challenge for epidemiological studies. In addition, the age and time set at which multiple sclerosis appears can create miscalculations. Research showed that the prevalence consistently increased with repeated surveys within the same area, but can be attenuated from the effect of how new cases accumulate over time and the old cases being missed.