Bibliometric Analysis
Journal Bibliometric Report (2021)
The Journal Bibliometric Report is based on all publications in Medline/Pubmed that were cited by Medline/Pubmed publications in 2021.
Search for a journal name or select one of the fields listed in the table below.
Field/Discipline Summary
Fields are based on the broad subject headings assigned to journals in NLM. For each field, the table below lists the number of journals cited in 2021 (Journals); the total number of times citable publications were cited in 2021 (Total Cites); the average number of times citable publications from 2019 and 2020 were cited by publications in 2021 (Impact Factor); the average number of times citable publications from 2016 through 2020 were cited by publications in 2021 (5-Year Impact); the average number of times citable publications from 2021 were cited by publications in 2021 (Immediacy Index); the number of citable publications in 2021 (Articles); and the median age in years of citable publications that were cited by publications in 2021 (Cited Half-Life). Citable publications are those whose Medline/Pubmed type is "Journal Article", which in general includes things like original research, meta-analysis, and reviews, but does not include editorials or letters. The data in the table below includes self-citations.
| Field | Journals | Total Cites | Impact Factor | 5-Year Impact | Immediacy Index | Articles | CitedHalfLife | ShowJournals |
|---|---|---|---|---|---|---|---|---|
| Acquired Immunodeficiency Syndrome | 65 | 66754 | 2.196 | 2.264 | 0.676 | 2737 | 6 | Details |
| Aerospace Medicine | 18 | 3489 | 0.412 | 0.428 | 0.073 | 286 | 16 | Details |
| Allergy and Immunology | 282 | 1041995 | 4.391 | 4.053 | 1.026 | 24107 | 7 | Details |
| Anatomy | 70 | 41693 | 0.978 | 1.079 | 0.334 | 1864 | 13 | Details |
| Anesthesiology | 76 | 88634 | 1.350 | 1.284 | 0.332 | 4877 | 8 | Details |
| Anthropology | 19 | 9722 | 0.793 | 0.824 | 0.228 | 523 | 10 | Details |
| Anti-Infective Agents | 27 | 124551 | 3.456 | 3.082 | 0.828 | 3310 | 7 | Details |
| Antineoplastic Agents | 19 | 46652 | 1.777 | 1.996 | 0.465 | 1717 | 7 | Details |
| Audiology | 38 | 40784 | 0.908 | 0.980 | 0.209 | 2503 | 11 | Details |
| Bacteriology | 21 | 57479 | 2.406 | 2.087 | 0.874 | 1008 | 15 | Details |
| Behavioral Sciences | 110 | 277337 | 1.882 | 1.981 | 0.602 | 10911 | 8 | Details |
| Biochemistry | 359 | 1741274 | 2.609 | 2.500 | 0.677 | 54556 | 8 | Details |
| Biology | 308 | 1121471 | 2.901 | 2.829 | 0.842 | 48617 | 5 | Details |
| Biomedical Engineering | 140 | 377510 | 1.537 | 1.500 | 0.437 | 30762 | 5 | Details |
| Biophysics | 97 | 408480 | 1.498 | 1.309 | 0.384 | 24708 | 7 | Details |
| Biotechnology | 133 | 483504 | 1.809 | 1.837 | 0.500 | 30070 | 6 | Details |
| Botany | 53 | 344636 | 2.603 | 2.712 | 0.726 | 9392 | 8 | Details |
| Brain | 64 | 361128 | 2.704 | 2.672 | 0.670 | 9206 | 9 | Details |
| Cardiology | 267 | 724941 | 2.445 | 2.369 | 0.654 | 27345 | 7 | Details |
| Cell Biology | 223 | 1532429 | 5.130 | 5.167 | 1.278 | 26750 | 7 | Details |
| Chemistry | 154 | 1075591 | 1.733 | 1.628 | 0.484 | 69972 | 6 | Details |
| Chemistry Techniques, Analytical | 53 | 149852 | 1.130 | 1.036 | 0.302 | 10490 | 7 | Details |
| Chemistry, Clinical | 11 | 34921 | 3.415 | 2.540 | 0.724 | 831 | 8 | Details |
| Chiropractic | 2 | 2012 | 0.775 | 1.174 | 0.245 | 53 | 12 | Details |
| Clinical Laboratory Techniques | 45 | 149456 | 3.191 | 3.414 | 0.826 | 3093 | 8 | Details |
| Communicable Diseases | 90 | 436228 | 4.629 | 3.411 | 1.736 | 16236 | 5 | Details |
| Complementary Therapies | 47 | 58188 | 1.190 | 1.081 | 0.236 | 4722 | 6 | Details |
| Computational Biology | 39 | 247549 | 3.025 | 3.255 | 1.086 | 6352 | 8 | Details |
| Critical Care | 48 | 145394 | 3.166 | 2.799 | 0.996 | 4066 | 7 | Details |
| Dentistry | 437 | 270785 | 1.165 | 1.197 | 0.251 | 15260 | 9 | Details |
| Dermatology | 98 | 149307 | 1.158 | 1.196 | 0.296 | 9782 | 8 | Details |
| Diagnostic Imaging | 121 | 335902 | 2.066 | 2.048 | 0.498 | 15515 | 6 | Details |
| Disaster Medicine | 9 | 5221 | 1.200 | 0.958 | 0.218 | 711 | 5 | Details |
| Drug Therapy | 113 | 272066 | 3.092 | 2.874 | 0.823 | 9559 | 6 | Details |
| Education | 74 | 76979 | 1.099 | 1.134 | 0.310 | 6781 | 7 | Details |
| Embryology | 43 | 162081 | 2.919 | 3.176 | 0.690 | 2374 | 10 | Details |
| Emergency Medicine | 51 | 60441 | 1.249 | 1.088 | 0.331 | 5340 | 6 | Details |
| Endocrinology | 162 | 532655 | 3.044 | 3.031 | 0.772 | 13666 | 8 | Details |
| Environmental Health | 170 | 539069 | 1.374 | 1.280 | 0.353 | 62180 | 5 | Details |
| Epidemiology | 86 | 212078 | 2.337 | 2.287 | 0.750 | 7257 | 8 | Details |
| Ethics | 77 | 19109 | 0.787 | 0.736 | 0.252 | 2701 | 6 | Details |
| Family Planning Services | 15 | 4380 | 1.311 | 1.284 | 0.339 | 174 | 9 | Details |
| Forensic Sciences | 25 | 13175 | 0.659 | 0.674 | 0.170 | 1339 | 7 | Details |
| Gastroenterology | 159 | 547407 | 2.848 | 2.865 | 0.639 | 17049 | 7 | Details |
| General Surgery | 383 | 598677 | 1.136 | 1.180 | 0.233 | 38793 | 8 | Details |
| Genetics | 134 | 425478 | 3.276 | 3.348 | 0.812 | 10468 | 7 | Details |
| Genetics, Medical | 80 | 330203 | 3.326 | 3.628 | 0.887 | 6673 | 7 | Details |
| Geriatrics | 104 | 253801 | 2.477 | 2.469 | 0.698 | 11097 | 6 | Details |
| Gynecology | 130 | 180014 | 1.482 | 1.431 | 0.329 | 9409 | 8 | Details |
| Health Services | 227 | 172812 | 1.466 | 1.375 | 0.428 | 11748 | 7 | Details |
| Health Services Research | 128 | 174809 | 1.937 | 2.082 | 0.604 | 8001 | 6 | Details |
| Hematology | 116 | 348814 | 2.945 | 2.695 | 0.893 | 10224 | 7 | Details |
| Histocytochemistry | 18 | 16298 | 1.259 | 1.443 | 0.379 | 625 | 11 | Details |
| Histology | 20 | 34891 | 1.767 | 2.148 | 0.432 | 1047 | 8 | Details |
| History of Medicine | 106 | 5639 | 0.229 | 0.215 | 0.094 | 1593 | 8 | Details |
| Hospitals | 65 | 32919 | 1.650 | 1.146 | 0.487 | 2246 | 7 | Details |
| Internal Medicine | 37 | 166863 | 3.356 | 2.753 | 0.997 | 5656 | 6 | Details |
| Jurisprudence | 101 | 22550 | 0.665 | 0.630 | 0.198 | 2466 | 7 | Details |
| Laboratory Animal Science | 11 | 10166 | 1.175 | 1.303 | 0.298 | 517 | 8 | Details |
| Library Science | 4 | 1128 | 0.895 | 1.467 | 0.400 | 90 | 6 | Details |
| Medical Informatics | 83 | 154412 | 2.329 | 2.024 | 0.583 | 11274 | 5 | Details |
| Medicine (General) | 759 | 2430689 | 2.942 | 2.526 | 0.818 | 93221 | 6 | Details |
| Metabolism | 115 | 442785 | 3.299 | 3.373 | 0.798 | 11277 | 7 | Details |
| Microbiology | 226 | 776831 | 3.199 | 3.052 | 0.908 | 24223 | 7 | Details |
| Military Medicine | 25 | 12745 | 1.207 | 0.882 | 0.234 | 1217 | 7 | Details |
| Molecular Biology | 291 | 1737831 | 3.423 | 3.366 | 0.887 | 53458 | 7 | Details |
| Nanotechnology | 29 | 199460 | 1.929 | 1.802 | 0.508 | 13962 | 4 | Details |
| Neoplasms | 345 | 1748964 | 3.635 | 3.675 | 0.911 | 40824 | 6 | Details |
| Nephrology | 76 | 182884 | 2.523 | 2.401 | 0.580 | 5687 | 8 | Details |
| Neurology | 469 | 1763821 | 2.551 | 2.740 | 0.601 | 45764 | 8 | Details |
| Neurosurgery | 50 | 115754 | 1.113 | 1.225 | 0.217 | 6275 | 9 | Details |
| Nuclear Medicine | 62 | 76633 | 1.440 | 1.398 | 0.497 | 4398 | 7 | Details |
| Nursing | 487 | 170360 | 0.761 | 0.743 | 0.225 | 18948 | 7 | Details |
| Nutritional Sciences | 163 | 547111 | 2.152 | 2.235 | 0.528 | 25261 | 6 | Details |
| Obstetrics | 130 | 163417 | 1.479 | 1.423 | 0.361 | 8902 | 7 | Details |
| Occupational Medicine | 77 | 41072 | 0.987 | 0.956 | 0.354 | 2752 | 9 | Details |
| Ophthalmology | 174 | 324666 | 1.118 | 1.218 | 0.305 | 18747 | 9 | Details |
| Orthodontics | 24 | 19241 | 0.875 | 0.881 | 0.163 | 964 | 12 | Details |
| Orthopedics | 129 | 349172 | 1.389 | 1.578 | 0.242 | 15897 | 9 | Details |
| Osteopathic Medicine | 2 | 910 | 0.440 | 0.450 | 0.266 | 124 | 8 | Details |
| Otolaryngology | 87 | 93443 | 1.089 | 0.967 | 0.251 | 7012 | 8 | Details |
| Palliative Care | 21 | 46496 | 1.412 | 1.559 | 0.287 | 4115 | 6 | Details |
| Parasitology | 63 | 117475 | 2.499 | 2.188 | 0.664 | 4348 | 6 | Details |
| Pathology | 180 | 264884 | 2.009 | 1.947 | 0.475 | 8702 | 8 | Details |
| Pediatrics | 297 | 462354 | 1.427 | 1.406 | 0.389 | 25730 | 8 | Details |
| Perinatology | 47 | 51570 | 1.202 | 1.290 | 0.269 | 3522 | 7 | Details |
| Pharmacology | 312 | 738622 | 2.266 | 2.208 | 0.582 | 26229 | 7 | Details |
| Pharmacy | 72 | 43440 | 1.040 | 1.011 | 0.238 | 3888 | 6 | Details |
| Photography | 6 | 86 | 0.413 | 0.282 | 0.065 | 31 | 5 | Details |
| Physical and Rehabilitation Medicine | 100 | 120304 | 1.195 | 1.325 | 0.304 | 6442 | 8 | Details |
| Physics | 35 | 108022 | 0.774 | 0.694 | 0.261 | 11301 | 7 | Details |
| Physiology | 231 | 669919 | 2.207 | 2.263 | 0.533 | 18199 | 10 | Details |
| Podiatry | 6 | 2424 | 0.454 | 0.580 | 0.135 | 303 | 7 | Details |
| Primary Health Care | 49 | 44552 | 1.017 | 1.110 | 0.300 | 3721 | 7 | Details |
| Psychiatry | 312 | 617230 | 2.628 | 2.499 | 0.622 | 20374 | 8 | Details |
| Psychology | 282 | 537178 | 1.752 | 1.803 | 0.505 | 19565 | 10 | Details |
| Psychopharmacology | 30 | 81030 | 2.192 | 2.403 | 0.607 | 2128 | 9 | Details |
| Psychophysiology | 67 | 261022 | 2.281 | 2.310 | 0.536 | 8199 | 8 | Details |
| Public Health | 341 | 533436 | 2.524 | 2.274 | 0.726 | 38023 | 5 | Details |
| Pulmonary Medicine | 160 | 370011 | 2.572 | 2.326 | 0.777 | 13269 | 7 | Details |
| Radiology | 133 | 262846 | 2.217 | 1.876 | 0.393 | 11461 | 7 | Details |
| Radiotherapy | 28 | 76096 | 2.024 | 1.954 | 0.410 | 3029 | 8 | Details |
| Reproductive Medicine | 114 | 180028 | 1.598 | 1.728 | 0.369 | 7233 | 9 | Details |
| Rheumatology | 70 | 201044 | 2.691 | 2.671 | 0.862 | 5821 | 8 | Details |
| Science | 89 | 2497131 | 4.102 | 3.734 | 1.193 | 61367 | 6 | Details |
| Sexually Transmitted Diseases | 39 | 24815 | 1.204 | 1.210 | 0.293 | 1541 | 7 | Details |
| Social Sciences | 98 | 106971 | 1.468 | 1.523 | 0.568 | 6085 | 8 | Details |
| Speech-Language Pathology | 31 | 28369 | 0.715 | 0.728 | 0.162 | 2097 | 11 | Details |
| Sports Medicine | 55 | 175120 | 2.067 | 2.325 | 0.474 | 5804 | 8 | Details |
| Statistics as Topic | 57 | 78484 | 0.801 | 0.836 | 0.263 | 4346 | 11 | Details |
| Substance-Related Disorders | 59 | 101400 | 2.045 | 2.133 | 0.475 | 4300 | 7 | Details |
| Technology | 62 | 108763 | 1.052 | 0.979 | 0.341 | 15504 | 4 | Details |
| Teratology | 9 | 4992 | 1.021 | 1.132 | 0.253 | 166 | 10 | Details |
| Therapeutics | 121 | 290454 | 2.534 | 2.470 | 0.620 | 14384 | 5 | Details |
| Toxicology | 141 | 265162 | 1.268 | 1.240 | 0.305 | 21780 | 6 | Details |
| Transplantation | 49 | 123855 | 1.787 | 1.742 | 0.692 | 5174 | 7 | Details |
| Traumatology | 87 | 116646 | 1.103 | 1.198 | 0.236 | 7698 | 7 | Details |
| Tropical Medicine | 80 | 122213 | 1.940 | 1.930 | 0.529 | 5249 | 7 | Details |
| Urology | 87 | 143153 | 1.188 | 1.251 | 0.264 | 8411 | 8 | Details |
| Vascular Diseases | 192 | 619160 | 2.451 | 2.404 | 0.591 | 20462 | 7 | Details |
| Veterinary Medicine | 175 | 258789 | 1.155 | 1.190 | 0.331 | 13522 | 9 | Details |
| Virology | 59 | 272502 | 5.484 | 4.032 | 1.348 | 6797 | 7 | Details |
| Vital Statistics | 22 | 35182 | 14.935 | 9.659 | 6.635 | 545 | 2 | Details |
| Women's Health | 23 | 17702 | 1.176 | 1.254 | 0.233 | 1496 | 7 | Details |
| Zoology | 52 | 93932 | 0.763 | 0.798 | 0.206 | 7347 | 8 | Details |
| (All Fields) | 21093 | 31083622 | 2.305 | 2.224 | 0.614 | 1414119 | 7 | Details |
Note: the data used by the tools on this page are derived from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.