Interviewer instructions
Columns 5 and 6. Date of birth or age.
Ask for the date on which the person was born. Write down the day, month, and year of birth in the space provided. If the exact date is not known, request that the year, approximate date, or estimated age be provided.
If the person gives the date of birth, do not ask the age. Try to receive the person's exact date of birth.
For children younger than one year of age, write down 00 in column 6. For those 100 years of age and older, write down 99 in column 6.
Always convert the date of birth into years completed according to the attached table [p. 53]. Other questions in the questionnaire require this piece of information.
5.34. How to use the age conversion table
In order to convert a date of birth to the correct age, look for the year in the first column and according to the month found in the second or third column the number of years is the age. The number obtained from the table is written down in column 6.