Table 1.

Grant and Applicant Characteristics and Bibliometric Outcomes From 1492 Cardiovascular R01 Grants by Prior Number of NHLBI Publications

No. of Prior NHLBI Publications≤34–10>10P Value
No. of grants535480477
Applicant prior productivity
 Prior publications0/1/25/6/813/17/24<0.001
 Prior number of grants0/1/31/2/41/3/5<0.001
 Prior grant funding, $mn0.00/0.42/1.570.12/0.98/2.600.56/2.68/6.87<0.001
 Prior number of study sections0/0/20/1/20/1/4<0.001
Grant characteristics
 Percentile8.7/15.1/21.77.6/13.9/21.27.2/13.5/19.50.014
 New investigator44% (236)27% (130)16% (76)<0.001
 Human studies38% (201)32% (152)32% (155)0.096
 Total funding, $mn1.27/1.65/2.681.32/1.69/2.711.42/1.83/2.970.006
 Duration, y5.0/5.8/7.65.0/5.9/7.75.0/5.9/8.40.32
 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, $mn10.86/28.82/43.8313.77/30.55/42.9515.56/32.66/45.270.026
Bibliometric measures
 No. of publications604455877628
 Average number of grants acknowledged per article1.6/2.4/3.62.0/3.0/4.22.5/3.5/5.3<0.001
Bibliometric outcomes for each grant
 No. of publications4.0/8.0/15.04.3/8.0/13.56.0/11.3/21.0<0.001
 Normalized citation impact2.1/5.0/9.82.5/5.1/9.13.7/7.2/13.6<0.001
 No. of top 10% publications0.0/1.3/4.00.0/1.3/4.01.0/2.3/6.0<0.001
 No. of top 1% publications0.0/0.0/1.20.0/0.0/2.00.0/1.0/3.0<0.001
 Normalized citation impact per million dollars1.3/2.8/5.31.5/2.8/4.92.0/3.8/6.5<0.001
 No. of top 10% publications per million dollars0.0/0.8/1.90.0/0.8/1.70.4/1.3/2.7<0.001
  • Values shown are 25th percentile/median/75th percentile or percentile (number). NHLBI indicates National Heart, Lung, and Blood Institute.