It depends on what the 90% is. The research is unpublished so there's no way to know. What is the specificity and sensitivity? Or hell just give me a confusion

It depends on what the 90% is. The research is unpublished so there's no way to know. What is the specificity and sensitivity? Or hell just give me a confusion matrix. That'll give you the answers you care about. If the sensitivity is extremely high then it's an excellent diagnostic for sexual characteristics that are a deviation from the norm. But otherwise tbh I just don't see it being a super useful test.