Enter the woman's date of birth or age. This is an important question, because many of the survey results will be calculated by age of the woman. You must obtain the month and year for her date of birth, or her age in completed years, that is, her age at her last birthday.
If she does not know the answer to either of these questions, probe for clues that might indicate her age. Ask how old she was when she was first married, or first gave birth. Try to find out how long ago she got married or had her first child. (You may be able to find out the age of her oldest child if the child is still living. You may be able to relate her age to someone else in the household whose age is known. You may be able to determine her age based on how old she was when an important event occurred, and the number of years that have since elapsed.)
As a very last resort, if you cannot obtain her age in any other way, you will have to estimate her age. You must fill in this information. Do not leave this item blank.