With the wast majority of the population (using Swedish data) working in industries that is gender segregated, there is plenty of studies asking why student switch program, people switch job, and people switching profession. In that there is an interesting pattern found a rather long time ago, which is that those in minority position has a significant higher ratio of leaving a profession compared to the majority. Equally for both male and female dominated professions.

So I usually look for common explanation for gender segregation that work both for women and men. 87.4% gender segregation for men and 87.6% for women is rather extreme, but it is also quite obvious that either there is a common cause or a massive coincident that both men and women end up working in mostly single gender work places.