Chung and van der Horst have shown that the use of flexitime significantly reduces the likelihood of mothers decreasing their working hours after childbirth, and reduces the likelihood of first time mothers leaving their work altogether.
Chung og van der Horst har vist at anvendelsen af flextid reducerer sandsynligheden for, at mødre reducerer deres arbejdstid efter fødslen, samt reducerer sandsynligheden for at førstegangsmødre helt og holdent forlader deres arbejdsplads.