( Background: Maternal employment has been shown to influence various child/adolescent outcomes such as cognitive outcomes, educational achievement, behavioural problems, overweight, selfrated health or child fatalities. There is, however, only limited number of studies using UK longitudinal data, and limited number of data using health measures as study outcomes. The aim of this study is to cover these gaps by looking at influence of maternal employment in three periods of childhood on health outcomes among young people aged 16-21 years in British Household Panel Survey (BHPS). Methods: BHPS is annual panel survey that has started in 1991 with currently completed 17th wave of data. Response rate to wave 1 was 74%, and response between waves 2 and 17 varied between 84%-89%. There are 3,696 individuals for whom selfrated health and/or GHQ-12 at age 16-21 (study outcomes) and maternal employment data prior to age 16 years are available.