I can't recall where i got that info from, whether it was something published by one of the national organizations of PA's, a PA schools website, ect. But after considering it myself and looking at what the requirements were at that time ( maybe 5 years ago), it wasn't a difficult conclusion to draw.
At the end it may just boil down to percentages of folks admitted given that there are far more MD programs than PA programs. So it stands to reason that the fewer the seats, the harder to is to get one.
I too am a mother of 5 and over 40. I struggled back and forth about going back to school and was even embarrassed about telling people I wanted to be a doctor. when I finally did I heard that person say" why would you wait that long to go back to school?" ..... I am more excited and ready to go now after reading your question. Good luck!!!!