The original article said 38% students are registered with the disability office, not that 38% of students have accommodations.
Not all students registered with the disability office receive accommodations all of the time.
25% is still a very, very high number. The number of public universities is in the 3-4% range. From the article:
> According to Weis’s research, only 3 to 4 percent of students at public two-year colleges receive accommodations, a proportion that has stayed relatively stable over the past 10 to 15 years.