Table 2.

Grant and Applicant Characteristics and Bibliometric Outcomes From 1492 Cardiovascular R01 Grants by Prior Normalized Citation Impact

Prior Normalized Citation Impact≤2.22.2–6.9>6.9P Value
No. of grants498497497
Applicant prior productivity
 Prior normalized citation impact0/0.5/1.23.0/4.1/5.49.2/11.9/17.3<0.001
 Prior number of grants0/1/31/2/31/3/5<0.001
 Prior grant funding, $mn0.0/0.4/1.580.13/0.97/2.530.50/2.62/6.79<0.001
 Prior number of study sections0/0/20/0/20/1/4<0.001
Grant characteristics
 Percentile9.1/15.6/22.07.3/13.5/20.57.3/13.6/19.80.001
 New investigator44% (218)27% (136)18% (88)<0.001
 Human studies38% (189)30% (151)34% (168)0.041
 Total funding, $mn1.25/1.61/2.611.37/1.75/2.781.41/1.83/3.01<0.001
 Duration, y5.0/5.5/7.05.0/6.0/8.35.0/5.9/8.30.036
 Annual funding, $mn/y0.24/0.29/0.360.24/0.29/0.360.26/0.31/0.39<0.001
 Institutional funding in portfolio, $mn11.16/28.80/41.7213.18/30.33/43.8315.56/32.66/50.090.003
Bibliometric measures
 No. of publications543361197708
 Average number of grants acknowledged per article1.5/2.3/3.52.0/3.0/4.22.5/3.5/5.3<0.001
Bibliometric outcomes for each grant
 No. of publications4.0/8.0/14.05.0/9.0/15.05.8/11.0/20.0<0.001
 Normalized citation impact1.9/4.5/9.12.9/5.5/9.83.4/7.0/13.4<0.001
 No. of top 10% publications0.0/1.0/4.00.0/1.5/4.01.0/2.0/6.5<0.001
 No. of top 1% publications0.0/0.0/1.00.0/0.0/2.00.0/1.0/2.5<0.001
 Normalized citation impact per million dollars1.2/2.7/5.01.6/3.0/5.11.9/3.7/6.4<0.001
 No. of top 10% publications per million dollars0.0/0.8/1.80.0/0.8/1.90.3/1.3/2.7<0.001
  • Values shown are 25th percentile/median/75th percentile or percentile (number).