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Table 1 Summary of categories

From: Identifying translational science within the triangle of biomedicine

a Category Number of articles Percent of PubMed Number of authors MeSH descriptors Basic research Research level
A 1,878,604 9.4% 3.42 10.42 0.634 3.15
C 826,426 4.1% 3.39 8.79 0.911 3.78
H 8,676,294 43.3% 3.24 10.02 0.125 1.59
AC 2,015,181 10.1% 3.96 13.25 0.795 3.68
AH 611,098 3.1% 3.02 10.88 0.463 2.10
CH 1,581,218 7.9% 4.68 12.60 0.562 2.85
ACH 714,372 3.6% 4.50 14.71 0.753 3.40
None 3,728,996 18.6% 2.28 2.27 0.494 2.28
b Category Percent in PMC Percent cited in PMC Mean PMC citations Corrected PMC citations Harvard corrected citations Harvard WoS citations
A 5.5 31.6 1.23 16.2 56.7 40.4
C 17.1 50.8 4.85 36.0 97.1 60.1
H 4.9 22.5 0.71 13.7 51.8 32.4
AC 13.5 54.8 4.07 37.5 112.3 67.3
AH 6.3 34.8 1.65 23.8 83.9 55.1
CH 11.3 48.2 2.99 31.7 91.5 54.7
ACH 15.2 60.1 5.48 53.1 130.8 78.7
None 7.6 12.0 0.52 7.21 32.0 34.9
c Category Translational fraction (TF) Translational distance (TD) Translational years (TY) Translational closeness (TC)
A 0.198 2.46 10.40 0.107
C 0.379 3.08 8.74 0.147
H 0.192 1.12 5.69 0.183
AC 0.392 2.76 8.26 0.175
AH 0.249 1.71 6.70 0.187
CH 0.364 1.90 6.03 0.246
ACH 0.430 2.22 5.81 0.246
None 0.089 2.10 13.39 0.059
  1. Listed for each category are (a) the number of articles, the percent of all articles in PubMed, the average number of authors per article, the average number of distinct MeSH descriptors that have been assigned to the articles, fraction of articles in basic research (vs basic research or clinical medicine) journals, the average Research Level; (b) the percent of articles in the category that exist in PubMed Central (PMC), the percent of articles that have been cited by at least one article in PMC, the mean number of times articles have been cited in PMC, the mean corrected number of PMC citations, the mean corrected number of PMC citations for a sample of articles published by Harvard researchers, the mean number of Web of Science (WoS) citations for the same sample of Harvard publications; (c) the Translational Fraction (TF), the Translational Distance (TD), the Translational Years (TY), and the Translational Closeness (TC).