the incidence of rheumatoid arthritis is about 4/100,000 per year and the prevalence about 1/1000 persons...
Homework Answers
Prevalence= 1/1000 persons
Incidence = 4/100,000 per year
Prevalence= (Incidence Rate) X (Average Duration of disease)
Duration of disease= Prevalence/ Incidence rate
Duration of disease = (1/1000) / (4/100,000)
=0.001 /0.00004
Duration of disease =25 years.
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incidence of rheumatoid arthritis is about 4/100,000 per year and
the prevalence about 1/1000 persons...
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