The change in working hours was calculated for men and women with one child aged 0 years. The contractual working hours of twelve months previously were compared with the present contractual working hours. In this way the actual change in working hours of men and women who have had their first baby is calculated.
The figures in this article are from the Labour Force Survey (LFS), a sample survey among households in the Netherlands. The number of men and women in the LFS sample of a certain year who also had their first baby in that year is small. For this reason the figures for three years have been combined to get more reliable figures.