237 is perfectly fine and will get youin the door to a lot of programs..
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I tend to agree with the previous guy. A 237 is pretty good and should open most doors to interviews.
Plus to answer your other question, gender doesn't seem to matter, at least stat-wise. There's a study that showed that rankings of identical ERAS applications which differed in the gender of the applicants didn't significantly affect ranking. (Sherl, S. JBJS, Jan 2001)
An away rotation at the site, USMLE step 1 score, med school rank, interview performance, and letters are found to have the highest correlation with ranking, respectively. (Berstein, JBJS, Nov 2002)
That being said, I'll give an anecdotal example fwiw. I'm currently rotating at a program in a medium-size city with historically low numbers of female residents. I asked the clerkship director why that might be. I was told that the program did interview and rank females, but it appeared to him that the female applicants who interviewed there - who were also relatively high-quality applicants - frequently accepted offers elsewhere for reasons, such as more desirable location.