The variable V404 is extracted from the variable M4 for the last born child. Following is the code to create M4:

        { M4 - Duration of breastfeeding }
        if Q460 = missing then         { missing }
          M4(i) = missing;
        elseif Q460 = 2 then           { never breastfed }
          M4(i) = 94;
        elseif Q465 = 1 then
          M4(i) = 95;                     { still breastfeeding }
        else
          M4(i) = Q466;
        endif;

As it is shown in the coding, the information on breastfeeding is collected for all children under five years of age born to the mothers who were interviewed not from the households.

The distributed children's data file includes the children whose mothers were interviewed not the children of the households. These children could be listed in the household schedule but not all of them. The children included are dead children, children living elsewhere, in addition to the children of living in the household .