Page 58 - môc lôc

children under one year of age per 1,000 live births in the reference period
on average.

D
IMR  0  1000
B

Where:
IMR: Infant mortality rate;

D 0: Number of deaths of children under one year of age in the
reference period;
B: Total of live births in the reference period.

Under five mortality rate is the measure of mortality level of
children in the first five years of life. This rate is defined as the number of
deaths of children under age 5 per 1,000 live births in the reference period
on average.

D
U5MR  5 0  1000
B

Where:

U5MR: Under five mortality rate;

5D 0: Number of deaths under age 5 in the reference period;
B: Total of live births in the reference period.

Natural increase rate of population is the difference between
number of live births and number of deaths to the population in the
reference period. The natural increase rate of population is expressed as a
percentage or per mille.

Formula:

B - D
NIR = × 1000
P tb
Where:

NIR: Natural Increase Rate of population;

B: Total number of live births in the reference period;

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