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Table 1 Sample description. Number of articles in each group by geographic region, main subject areas and animal species used. Only the most prevalent areas and animal models for both databases are shown; the complete data is available in Table S4

From: Comparing quality of reporting between preprints and peer-reviewed articles in the biomedical literature

Region of origin bioRxiv PubMed
North America 34 23
44.7% 30.3%
Europe 32 27
42.1% 35.5%
Asia 5 18
6.6% 23.7%
Other regions 5 8
6.6% 10.5%
Subject Area
 Neuroscience 34 7
44.7% 9.2%
 Pharmacology and Toxicology 0 12
0% 15.8%
 Clinical Trials 0 9
0% 11.8%
 Epidemiology 0 9
0% 11.8%
 Microbiology 7 5
9.2% 6.6%
 Physiology 1 6
1.3% 7.9%
 Genetics 5 1
6.6% 1.3%
 Cell Biology 6 2
7.9% 2.6%
 Other 23 25
30.3% 32.9%
Species (vertebrates)
 Mice 14 7
56% 28%
 Rat 1 12
4% 48%
Macaca sp. 3 0
12% 0%
 Zebrafish 3 1
12% 4%
 Other species 4 5
16% 20%