justin 發問時間: 社會及文化語言 · 1 個月前

Prevalence ratios?

The baseline point prevalence of hypertension in African-American women aged 45-64

years included in the Atherosclerosis Risk in Communities (ARIC) Study was found to be

56%. Over a follow-up period of 6 years, in the ARIC study the average yearly incidence of

hypertension in these women was estimated to be about 5% and stable. Using these data,

estimate the average duration of hypertension in the African American women in the ARIC

study.

a. 8.8

b. 11.2

c. 15.7

d. 25.5

e. 56.0

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