I am not impressed
I would first examine what they mean by published and by first author. If they are using AMCAS ECs to aggregate or examine the numbers, any publication, poster, and perhaps conference presentations at any level would be included such as
*Internal departmental student symposium *campus-wide student symposium
*multi or regional campus symposium
*student associations at any level from campus to national conference
*publication in the proliferation of small, online and non-reviewed journals
*annual school publication of senior thesis and or student research.
I would speculate, much of what first authorship and/or publications noted at UMICH isnt what you think it is.