Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
The question serves to identify people who are suffering from edentulism (who are missing all of their teeth), a particularly debilitating oral disease. If left untreated, edentulism can lead to the shrinking and loss of jawbone. Record a response of “yes” only if the respondent has lost all of their natural teeth, and not just some or most of them.