The team used data from Understanding Society, the UK Household Longitudinal Study (UKHLS), which followed 2,281 mothers and 1,687 fathers for three or five years after their baby was born.
Ithimba lisebenzise imininingwane evela ku-Understanding Society, i-UK Household Longitudinal tudy (UKHLS), olulandele omama abangu-2,281 nobaba abangu-1,687 eminyakeni emithathu noma emihlanu ngemva kokuzalwa kwengane.