Table 1.
Bibliometric analyses: comparison between positive and negative studies.
| Variable | Positive studies | Negative studies |
|---|---|---|
| Core journals1 (in parenthesis the ones only present in the corresponding group) | 5 journals (BioRxiv) | 7 journals (Int. J. of Health Geographics; J. of Medical Entomology, Scientific Reports; Animals) |
| Number of authors' affiliations | 207 | 236 |
| 1st most frequent affiliation | U. of Kansas, USA* (11 studies; 20.3%) | Tehran U. of Medical Sciences, Iran (9 studies; 8.9%) |
| 2nd most frequent affiliation | National Autonomous U. of Mexico (10 studies; 9.3%) | U. of Oxford, UK** (8 studies; 7.9%) |
| 3rd most frequent affiliation | U. of California, USA* (9 studies; 8.4%) | U. of Florida, USA* (6 studies; 5.9%) |
| N° affiliations related to medical, clinical, and public health+ | 12 (23.5%) | 18 (43.9%) |
| N° affiliations related to universities+ | 39 (76.5%) | 24 (58.5%) |
| N° affiliations related to governmental institutions+ | 6 (11.8%) | 9 (21.9%) |
| N° of countries (authors' affiliations) | 35 countries | 65 countries |
| Most frequent countries (authors' affiliations) | USA*, 44 studies UK**, 16 studies Australia, 14 studies |
USA*, 33 studies UK**, 19 studies Iran, 12 studies |
| Total number of species and average | 2669 total; 32.5 species per study |
1136 total, 12 species per study |
| N° studies with 1 species | 24 (22.4%) | 45 (42.1%) |
| N° studies with 2–50 species | 74 (69.1%) | 59 (55.1%) |
| N° studies with >51 species | 7 (6.5%, max 457 spp.) | 3 (2.8%, max 317 spp.) |
| N° of diseases explored | 42 | 34 |
| Most relevant pathogen taxa class | Virus (49 studies; 47.8%) | Parasites (41 studies; 38.3%) |
1Positive and negative lists presented four core journals in common: Acta Tropica; Parasites & Vectors; PloS Neglected Tropical Diseases; PLoS ONE. *USA: the United States of America; **UK: the United Kingdom; +: only considers affiliations with at least two studies. U.: University.