A4. Sex
Enter the appropriate one-digit code in the shaded area under column A4 as follows:
Usually a person's sex will be obvious, but be careful to get the sex of young children right. Do not guess - ask!
Before going on to complete column A5, make sure that you have written down the names and the correct relationship and sex codes for every person who spent the night before your visit with the household. Remember to ask about persons described in paragraph 32.