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Calculate the infant mortality rate (per 1,000 live births) from the following data:________.

Number of infant deaths under 1 year in the United States during 1991 = 36,766
Number of live births during 1991 = 4,111,000
How did the infant mortality rate in 2013 compare with the infant mortality in 1991?

User MattClarke
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2 Answers

2 votes

Answer:

8.94 (mortality per 1,000 live births)

Explanation:

Given;

Number of infant deaths in 1991 = 36,766

Number of live births during 1991 = 4,111,000

The infant mortality rate = Number of infant deaths ÷ Number of live births

The infant mortality rate (per 1,000 live births)

R = Number of infant deaths/Number of live births × 1000

Substituting the given values;

R = 36,766/4,111,000 × 1000

R = 0.00894 × 1000

R = 8.94 (mortality per 1,000 live births)

For 2013;

There's no data given for 2013.

It will follow the same procedure;

The infant mortality rate (per 1,000 live births) in 2013;

R2 = Number of infant deaths in 2013 Nd/Number of live births in 2013 Nb × 1000

R2 = Nd/Nb × 1000

User Kayo Lima
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3 votes

Answer:

Between 1991 and 2013, the infant mortality rate in the United States declined from 8.943% to 5.708 %

Explanation:

From the information given:

The number of infant deaths under 1 year in the United States during 1991 = 36,766

The number of live births during 1991 = 4,111,000


Infant \ mortality \ rate \ in \ 1991 = (Number \ of \ deaths \ under \ 1 \ year)/(Total \ number \ of \ live \ births \ in \ 1991) * 1000


Infant \ mortality \ rate \ in \ 1991 = (36766)/(4111000) * 1000

Infant mortality rate in 1991 = 8.943%

From the data of year 2013 in the United States Record, 23,446 infants died under one year


Infant \ mortality \ rate \ in \ 1993= (23,466)/(4111000) * 1000

Infant mortality rate in 1993 = 5.708 %

Between 1991 and 2013, the infant mortality rate in the United States declined from 8.943% to 5.708 % which is approximately 3%

User Bob Arlof
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