Discussion as described in the module. Second complete the calculations below Me
ID: 3057377 • Letter: D
Question
Discussion as described in the module. Second complete the calculations below
Method for calculating prevalence of disease
× 10 n
The value of 10 n is usually 1 or 100 for common attributes. The value of 10 n might be 1,000, 100,000, or even 1,000,000 for rare attributes and for most diseases.
EXAMPLE: Calculating Prevalence
In a survey of 1,150 women who gave birth in Maine in 2018, a total of 468 reported taking a multivitamin at least 4 times a week during the month before becoming pregnant. Calculate the prevalence of frequent multivitamin use in this group.
Numerator = XXX multivitamin users
Denominator = XXXX women
Calculate the Prevalence = (XXX XXXX) × 100 =
Method for calculating incidence rate
In 2018, 44,232 new cases of acquired immunodeficiency syndrome (AIDS) were reported in the United States. The estimated mid-year population of the U.S. in 2018 was approximately 290,809,777. Calculate the incidence rate of AIDS in 2003.
Numerator = XXXXXnew cases of AIDS
Denominator = XXXXXXXXX estimated mid-year population
Incidence rate = (XXXXX XXXXXXXXX) × 100,000
= XX.XX new cases of AIDS per 100,000 population
Explanation / Answer
Solution:
1st example,
Numerator=468 multivitamin users
Denominator=1150 women
Prevelance=(468/1150)*100=40.695=40.7(approx)
2nd example,
Numerator=44232 new cases of AIDS.
Denominator=290809777 estimated mid-year population.
Incidence rate=(44232/290809777)*100000=15.209=15.21(approx)