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Table 5 Indexing and impact factor

From: Potential predatory and legitimate biomedical journals: can you tell the difference? A cross-sectional comparison

   Predatory, N = 93, n (%) Open Access, N = 99, n (%) Subscription-based, N = 100, n (%)
Indicate having Thomson ISI ‘Journal Impact Factor’ (JIF) Yes 21 (22.58) 38 (38.38) 80 (80.00)
If yes, median JIF (IQR)a 2.958 (0.500–3.742) 1.750 (1.330–2.853) 4.275 (2.469–6.239)
Other journal-level metric indicated Yes 54 (58.06) 16 (16.16) 62 (62.00)
Number of other metrics, median (IQR) 2 (1–2) 1 (1–2) 1 (1–2)
Other metric Top 5 listed (n) Index Copernicus Value (31) Global Impact Factor (9) Scientific Journal Impact Factor (9) Scientific Journal Rankings/SciMago/Scopus (7) Total citations (7) Scientific Journal Rankings/SciMago/Scopus (6) Total citations (5) Index Copernicus Value (3) h-index (2) 5-year impact factor (2) 5-year impact factor (27) Overall ranking (15) Scientific Journal Rankings/SciMago/Scopus (8) Source Normalized Impact Factor (8) Eigenfactor (7)
Databases indexed/listed PubMed MEDLINE CINAHL EMBASE PsycInfo Google Scholar Other 6 (6.65) 2 (2.15) 0 (0) 14 (15.05) 0 (0) 47 (50.54) 83 (89.25) 85 (85.86) 21 (21.21) 4 (4.04) 42 (42.42) 7 (7.07) 59 (59.60) 94 (94.95) 17 (17.00) 39 (39.00) 15 (15.00) 32 (32.00) 6 (6.00) 1 (1.00) 55 (55.00)
DOAJ mentioned (indexed or applying for indexing) Yes 48 (51.61) 65 (65.65) 1 (1.00)
ISSN found/identified Yes 91 (97.85) 95 (95.96) 72 (72.00)
Editorial organizations mentioned ICMJE WAME CSE EASE OASPA Otherb None 16 (17.2) 4 (4.30) 0 (0) 0 (0) 0 (0) 2 (2.15) 70 (75.27) 79 (79.8) 8 (8.08) 2 (2.02) 2 (2.02) 6 (6.06) 7 (7.07) 10 (10.10) 74 (74.00) 14 (14.00) 2 (2.00) 0 (0) 1 (1.00) 3 (3.00) 20 (20.00)
  1. ICMJE International Committee of Medical Journal Editors, WAME World Association of Medical Editors, CSE Council of Science Editors, EASE European Association of Science Editors
  2. aNumber of journals providing this information: Predatory, n = 21; Open Access, n = 37; Subscription, n = 80
  3. bOther: Association of Learned and Professional Society Publishers, Council of Biology editors, European Medical Writers Association, Higher Attestation Commission of the Russian Ministry of Education and Science, International Association of Scientific, Technical, & Medical Publishers, Korean Association of Medical Journal Editors, OAIster - The Open Access Initiative