Information from biobirth in 2022-24

Dataversion

SOEP Core v41

Data Set

biobirth

Please describe your problem

Dear SOEP team,

I have a question on the information from the biobirth file for the years 2022, 2023 and 2024.

There are several values of the variable “sumkids” that are missing in those years. It seems that the share of respondents with zero children is very low for those years. Is the value missing in case of no kids or what is the reason of this missingness? Is there any other available variable for the children biography of respondents interviewed for the first time in these years?

I would just need information about the first child of respondents (currently I am using kidgeb1 and kidmon01). I did not find an explanation for this, but maybe I missed some relevant documentatio n.

Many thanks ,

Franc esco