Interviewer instructions
The age of all living children should be recorded in completed years. For example, a child who will become three years old (complete three years) next week should be recorded as '02' years today. A child less than one year old will be recorded as age '00' years.
In some cases, the mother will not know the current age of her child. In this case, you may rephrase the question to, “How many years ago was Michael born?” You can also use other available information. For example, you can relate Henry's age to the age of a child she does know. For example, the mother may know that her youngest child was born one year ago and that Henry was two years old at that time, in which case Henry would be three years old now.
You MUST record an age for all children who are still alive. Failure to do so is UNACCEPTABLE, and you will need to re-visit the household to complete this information.