The issues of race & sex in healthcare outcomes really aren’t any kind of secret &/or novelty - at least, not to the patients from disadvantaged groups.
Dragging the Bem Test in seems… odd. There are now multiple iterations of it & as it’s self-reported it’s got nothing at all to do with how other people perceive you. We know that the same behaviour is perceived & received differently according to the sex performing it - male bosses are never ball-busters nor bitches; nor are there bossy boys - they are assertive, they are leaders, but pity the girl who dares to do &/or say the same things, because she is nothing but bossy.
I’d want to see data from elsewhere to try to pick apart - as far as one can - how much is related to broader issues with the American healthcare system. Was a breakdown provided by race, do we know?
Should perception of gender truly be an issue; with the way we see trans women speak & write about healthcare it seems unlikely many would have cause for concern. As I noted above, it doesn’t matter if they would score themselves as the most feminine person to have ever lived - the aggressive, demanding, entitled behaviour we’ve seen over & over & over again reads as stereotypically masculine, & it is the perception of care providers that is the issue.