Question 3 in January 2011, mm adult residents of a community accepted an invitation to he examined for hypothyroidism at a local clinic. 8 persons were found to have the disease, 3 were newly discovered, 5 already under treatment. The same group was examined again in 20116 new cases of hypothyroidism were discovered; of these, 2 had diagnosed 3; treated by their physicians several months before. It was found that out of 8 patients discovered at the year 201 1, 1 had discontinued medication 3; died in 212. Otherwise, all persons examined in 211 came to the 2nd examination. a. What was the prevalence of hypothyroidism, treated or not, in the examined group in January 211? in January 2613?{x = 1,t]DD} b. What was the annual incidence {means per year} of hypothyroidism in the group? {k=1,tlfl[}}. Interpret your answer. c. What was the 2year-period prevalence of hypothyroidism? (k=1,t]]. Interpret your answer. d. What was the case fatality rate of hypothyroidism in year 2D11'? e. Of all cases detected at the 2 examinations, what propoition was newly discovered"? {report proportion in '11:]