Table 1.

Scientific journal publications from UCSF graduate students

Graduation yearNo. of studentsGraduation time, yTime to first-author paper, yNo. of first-author publicationsFirst- plus second-author publicationsFirst author C/N/SFirst plus second author C/N/S
1979–89715.7 ± 1.04.7 ± 2.32.2 ± 1.52.9 ± 1.80.520.80
Top 1979–1989245.2 ± 0.93.4 ± 1.13.1 ± 1.24.5 ± 1.71.251.63
2012–20141046.3 ± 0.96.0 ± 1.91.4 ± 0.92.1 ± 1.30.170.31
Top 2012–2014345.9 ± 0.74.7 ± 1.42.4 ± 0.83.5 ± 1.10.530.94
  • The publications from PhD students who performed experimental work and graduated in the indicated years of the Biochemistry and Molecular Biology, Biophysics, Genetics, and Neuroscience programs were analyzed. The time periods indicated refer to the year of graduation. A larger time span (1979–1989) was scored compared with the recent time period (2012-2014) because past graduate programs were smaller than they are now. “Top” refers to the top one-third of the students in each group with the best publication records, as assigned qualitatively based upon the combination of criteria described in this table. “C/N/S” refers to papers in Cell, Nature, and Science and represents the average number of publications in these journals per student. Values represent means and SDs. Because coauthorship did not exist in the 1980s, we scored only the order of authorship; thus, a shared first author in the second position was counted as a second authorship in our analysis; an exception to this rule was made if a second position, cofirst author work, was the sole paper from the student’s graduate work. For more details of the analysis, see SI Methods. Scatter plots for all of the data are shown in Figs. S3 and S4.