Refresher Training for Frontline Health Workers in Expanded ... - RHO

Example of data used to calculate annual vaccination coverage
a) Calculate infants surviving to 12 months of age:
Calculate the births, infant deaths, and infants surviving to 12 months of age? (This
becomes the denominator for calculating coverage.)
Total woreda population: 25,000
Crude birth rate: 40 live births per 1000 population per year
Infant mortality rate: 125 infant deaths per 1000 live births per year
Use the formulas:
• Total births per year = 25,000 population X 40/1000 = 1000 births
• Total infant deaths per year = 1000 births X 125/1000 = 125 infant deaths
• Total births per year – total infant deaths per year = total surviving infants per
year
Answer: Therefore, 1000 births per year – 125 infant deaths = 875 surviving infants.
b) Calculate annual vaccination coverage:
DPT1 vaccinations in the woreda: 437
Number of surviving infants: 875
Use the formula:
DPT1 coverage (%) for infants = annual # of doses of DPT1 given to infants X 100
number of surviving infants
Answer: DPT1 coverage (%) for infants = 437 X 100 = 50%
875
For practical purposes, infant coverage for each vaccine and dose is calculated as
above.
Reporting performance in terms of vaccination coverage:
Assume that last year the population of surviving infants in your woreda was 800.
Last year you set a target to vaccinate 600 of them with each vaccine. You
succeeded in vaccinating 400 with DPT3.
What was your immunization coverage rate last year?
a) 50%
b) 67%
c) other
answer: 50%
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