UCD- ABOUT 2000 APPLICANTS OR ROUGHLY 50 PERCENT OF AMCAS applicants received secondaries. UCI-about one-third of AMCAS applicants receive a secondary. UCLA-typically, 55 percent of AMCAS applicants are asked to submit supplementary information. of those returning secondaries about 20 percent are invited for interviews. UCSD-about 40 percent of applicants receive a secondary application. of those returned, 500 are invited for interviews. UCSF-30 percent receive secondary, one third are invited for interview. med coll of wisconsin-all app. receive secondary. chicago med coll-all app. receive secondary.