Type to select a Country
Step 1) Calculate missing values where applicable. Recalculate the number of doses or the target number if possible.
Step 2) Exclude districts if any of the three relevant values (number of doses, target number, and coverage) are missing.
Step 3) Identify the 20% of districts with lowest coverage. For each country, year, and vaccine, order the districts by – 1) ascending coverage and 2) ascending target number. In case multiple districts with the same coverage are spread across multiple quintiles, this will allow districts with smaller population to be classified into lower quintiles. Districts ranking between 1 and (0.2 * total number of districts in the country) are defined as 20% of districts with lowest coverage.
Step 4) Calculate the indicator value.
Country level: Calculate the weighted coverage across the 20% of districts with lowest coverage for each country, year, and vaccine.
Regional and global level: Calculate the non-weighted average using the national aggregation