Current age of the child in single years for all living children. In the DHS VII recode, B8 is
based on the CDC of day of interview and date of birth of child and now calculated as ((V008A – B18) / 30.4375) / 12, where 30.4375 = 3625.25 divided by 12 months. Then take the integer part to get completed years. In previous recodes that was calculated as the integer of V008 – B3) / 12.