In the case of undergrads matriculating into the associated med school—
it’s important to know if the undergrad hosts a BA/MD program which guarantees that undergrads in that program can enroll in the med school. That fact can skew in-house admission percentages by A LOT.
Brown, for example, accepts ~1/5 of its incoming MS1s thru PLME. Ditto for URochester and REMS.