journals.sagepub.com/doi/abs/10.117…
journals.sagepub.com/doi/full/10.11…
And a country B where 60% of overall college degrees are awarded to women, but 30% of the STEM degrees were awarded women
*But*, in country B, women who go to college choose STEM much less often than in country A.
Looking at "the percentage of women among tertiary STEM graduates" completely ignores these baseline rates.