Graduate Division of Biological and Biomedical Sciences

This page contains aggregate data for the eight GDBBS programs. Program-by-program data follows on separate pages. During part of the period reflected in this data, the Nutrition and Health Sciences (NHS) PhD program was part of the GDBBS, and consequently data from that program is sometimes included in this aggregation. In effect, this means that data in the 5 Year Average column includes NHS students for one of its years in Admission (Fall 2015), one year in Enrollment (Fall 2015), and one year in Degrees (2014-15). Since September 2015, NHS is no longer part of the GDBBS, and its data page is no longer shown as one of the GDBBS programs.

MD/PhD students are excluded from the Admissions entries, included in the enrollment entries (when they are enrolled in the LGS, as opposed to in the SOM), included in the number of degrees awarded (PhD only), and excluded from the time to degree and completion percentage entries.

Percentages are rounded to whole numbers and do not always add to 100.

PhD AdmissionsFall 2019Fall 20185 Year Average
Admissions offers (Selectivity)174 (11%)170 (13%)160 (12%)
New doctoral students (Yield)74 (43%)76 (45%)69 (43%)
PhD EnrollmentFall 2019Fall 20185 Year Average
Total enrollment412404402
U.S. citizen or permanent resident90%89%90%
PhD Enrollment, U.S. Citizen or
Permanent Resident, by Race
Fall 2019Fall 20185 Year Average
Black or African American10%10%10%
Hispanic of any race11%11%10%
American Indian or Alaska Native1%
Native Hawaiian or Other Pacific Islander
Two or more races6%6%5%
Not indicated4%4%7%
PhD Degrees and Completion2018-192017-185 Year Average
Number of degrees awarded587365
Median years to PhD5.35.75.7
Average adjusted years to PhD5.65.85.8
Percent of students who entered
between 2007-08 and 2011-12, and
completed the PhD as
of August 31, 2019