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. Author manuscript; available in PMC: 2025 Oct 10.
Published before final editing as: Ann Surg. 2025 Aug 4:10.1097/SLA.0000000000006880. doi: 10.1097/SLA.0000000000006880

Table 2.

Demographic and grant characteristics of unique principal investigators who trained at residency programs in the first quartile of NIH funding compared to those who trained at a residency program in any other quartile of NIH funding, excluding those not listed on the BRIMR sheets.

First Quartile-Trained PIs (n=394) All Other Quartile-Trained PIs (n=124) P-value
Gender 0.116
Male 288 (73.1%) 100 (80.6%)
Female 106 (26.9%) 24 (19.4%)
Graduate Degree(s) 0.454
PhD 80 (20.3%) 20 (16.1%)
Master’s 76 (19.3%) 19 (15.3%)
PhD/Master’s 6 (1.5%) 2 (1.6%)
None 232 (58.9%) 83 (66.9%)
IMG <0.0001
Yes 20 (5.1%) 23 (18.5%)
No 374 (94.9%) 101 (81.5%)
Remained at the Same Institution <0.001
Yes 118 (29.9%) 17 (13.7%)
No 276 (70.1%) 107 (86.3%)
Specialty <0.001
Bariatric 0 (0.0%) 1 (0.8%)
Breast 8 (2.0%) 4 (3.2%)
Cardiothoracic 85 (21.6%) 10 (8.1%)
Colorectal 12 (3.0%) 4 (3.2%)
Endocrine 11 (2.7%) 4 (3.2%)
General 14 (3.5%) 5 (4.0%)
Pediatric Surgery 29 (7.4%) 12 (9.7%)
Plastics 27 (6.9%) 5 (4.0%)
Surgical Oncology 67 (17.0%) 25 (20.2%)
Transplant 57 (14.5%) 8 (6.5%)
Trauma/Acute Care/Critical Care/Bum 42 (10.7%) 28 (22.6%)
Vascular 42 (10.7%) 18 (14.5%)
Weighted RCR 109 [49.3 – 238.8] 94.4 [37.9 – 219.7] 0.118
Average Funding Per PI/Year $354,555 [$194,826 – $627,210] $328,179 [$199,484 – $527,576] 0.358
Total Funding Per Year * $117.9 [$99.7 – $143.7] $24.8 [$20.0 – $32.2] <0.0001
Multiple Grants 0.588
Yes 54 (13.7%) 14 (11.3%)
No 340 (86.3%) 110 (88.7%)

Abbreviations: National Institutes of Health (NIH), Principal Investigators (PIs), International Medical Graduate (IMG), Relative Citation Ratio (RCR)

*

in millions