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Mainstage Variable

ch1bm_dv

First (biological) child birth month

Month of birth of first child. Special Licence release (SN6931) only.

See CH1BY_DV ANYCHILD_DV

Datafile

Index terms

Derived variable note:

Month of birth of first child. Special Licence release (SN6931) only.

See CH1BY_DV ANYCHILD_DV

Derived variable note:

Uses files W_CH1BM on data file W_INDRESP
W_LCHDOBM on datafile W_NATCHILD
W_MNPID WFNPID W_BIRTHM on W_INDALL
W_LCHBM on datafile W_NEWBORN
BW_CH1BM on datafile BW_INDRESP/

Value labelValueAbsolute frequencyRelative frequency
missing-98971153.65%
has child, date missing080644.82%
january160243.6%
february252553.14%
march357943.47%
april453793.22%
may558653.51%
june667234.02%
july758443.5%
august858693.51%
september957353.43%
october1059503.56%
november1154623.27%
december1255333.31%
Total167208100.0%
MeanNumber MissingMinMaxStd DevN
5.8189711012.03.7977497

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