I know I am the millionth person to ask but anyway, here we go. Please don't quote, I'd like the option of deleting.
Option 1- I am well versed in the subject of trauma-informed care due to the fact that my mom grew up in an abusive home and has become a big advocate for it. I have done research in the subject since submitting my primary so could mention that and my trauma-informed perspective and how that would add to my classmates by learning more about it.
Option 2- Significant public health experience, worked at 3 different public health agencies during undergrad
If both of these options don't work, it's back to the drawing board! I'm not an immigrant, don't have any unique hobbies (though the opinion on whether that makes for a good diversity essay appears to be mixed) so I will have to dig deep.