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 | 49 | 67050 | 2.194 | 2.260 | 0.685 | 2783 | 6 | Details |
| Aerospace Medicine | 19 | 3540 | 0.418 | 0.430 | 0.077 | 272 | 17 | Details |
| Allergy and Immunology | 281 | 1045562 | 4.484 | 4.130 | 1.035 | 23988 | 7 | Details |
| Anatomy | 70 | 42225 | 0.981 | 1.088 | 0.330 | 1879 | 13 | Details |
| Anesthesiology | 77 | 90173 | 1.382 | 1.312 | 0.340 | 4789 | 8 | Details |
| Anthropology | 19 | 9753 | 0.751 | 0.809 | 0.214 | 529 | 11 | Details |
| Anti-Infective Agents | 27 | 127247 | 3.538 | 3.148 | 0.832 | 3322 | 7 | Details |
| Antineoplastic Agents | 19 | 47712 | 1.796 | 2.028 | 0.471 | 1725 | 7 | Details |
| Audiology | 38 | 41261 | 0.915 | 0.992 | 0.204 | 2522 | 11 | Details |
| Bacteriology | 21 | 58102 | 2.471 | 2.130 | 0.882 | 1002 | 15 | Details |
| Behavioral Sciences | 110 | 279173 | 1.887 | 1.987 | 0.595 | 11074 | 8 | Details |
| Biochemistry | 356 | 1771074 | 2.649 | 2.536 | 0.688 | 56123 | 8 | Details |
| Biology | 308 | 1132950 | 2.928 | 2.853 | 0.834 | 49755 | 5 | Details |
| Biomedical Engineering | 139 | 383329 | 1.547 | 1.513 | 0.430 | 31284 | 5 | Details |
| Biophysics | 96 | 413558 | 1.514 | 1.322 | 0.389 | 25509 | 7 | Details |
| Biotechnology | 133 | 491720 | 1.834 | 1.860 | 0.500 | 31100 | 6 | Details |
| Botany | 52 | 353130 | 2.621 | 2.749 | 0.698 | 9928 | 8 | Details |
| Brain | 64 | 363364 | 2.728 | 2.684 | 0.670 | 9222 | 9 | Details |
| Cardiology | 265 | 732251 | 2.560 | 2.440 | 0.666 | 26796 | 7 | Details |
| Cell Biology | 223 | 1557728 | 5.197 | 5.238 | 1.282 | 27389 | 7 | Details |
| Chemistry | 153 | 1088364 | 1.746 | 1.640 | 0.492 | 71746 | 6 | Details |
| Chemistry Techniques, Analytical | 53 | 151772 | 1.139 | 1.046 | 0.299 | 10595 | 7 | Details |
| Chemistry, Clinical | 11 | 35652 | 3.498 | 2.588 | 0.729 | 834 | 9 | Details |
| Chiropractic | 2 | 2047 | 0.786 | 1.186 | 0.226 | 53 | 12 | Details |
| Clinical Laboratory Techniques | 45 | 150241 | 3.231 | 3.439 | 0.818 | 3084 | 8 | Details |
| Communicable Diseases | 89 | 434875 | 4.700 | 3.426 | 1.838 | 14759 | 5 | Details |
| Complementary Therapies | 47 | 59481 | 1.210 | 1.100 | 0.237 | 4776 | 6 | Details |
| Computational Biology | 39 | 248601 | 3.042 | 3.260 | 1.076 | 6436 | 8 | Details |
| Critical Care | 47 | 146016 | 3.219 | 2.834 | 1.025 | 3761 | 7 | Details |
| Dentistry | 437 | 276681 | 1.188 | 1.225 | 0.253 | 15148 | 9 | Details |
| Dermatology | 96 | 150400 | 1.210 | 1.242 | 0.305 | 9362 | 8 | Details |
| Diagnostic Imaging | 121 | 336526 | 2.097 | 2.079 | 0.503 | 15348 | 6 | Details |
| Disaster Medicine | 9 | 5293 | 1.221 | 0.974 | 0.232 | 729 | 5 | Details |
| Drug Therapy | 113 | 275789 | 3.152 | 2.921 | 0.823 | 9568 | 6 | Details |
| Education | 75 | 78007 | 1.100 | 1.138 | 0.301 | 6864 | 7 | Details |
| Embryology | 43 | 164131 | 2.916 | 3.196 | 0.683 | 2422 | 10 | Details |
| Emergency Medicine | 49 | 60698 | 1.246 | 1.094 | 0.339 | 5231 | 6 | Details |
| Endocrinology | 162 | 541148 | 3.099 | 3.081 | 0.777 | 13657 | 8 | Details |
| Environmental Health | 171 | 548644 | 1.393 | 1.297 | 0.366 | 63925 | 5 | Details |
| Epidemiology | 86 | 213877 | 2.341 | 2.296 | 0.743 | 7320 | 8 | Details |
| Ethics | 76 | 19033 | 0.785 | 0.733 | 0.250 | 2753 | 6 | Details |
| Family Planning Services | 15 | 4396 | 1.313 | 1.274 | 0.341 | 176 | 9 | Details |
| Forensic Sciences | 25 | 13358 | 0.680 | 0.695 | 0.179 | 1229 | 8 | Details |
| Gastroenterology | 157 | 548407 | 2.942 | 2.949 | 0.640 | 16595 | 7 | Details |
| General Surgery | 381 | 602562 | 1.160 | 1.200 | 0.236 | 38077 | 8 | Details |
| Genetics | 132 | 428182 | 3.307 | 3.375 | 0.802 | 10570 | 7 | Details |
| Genetics, Medical | 80 | 334467 | 3.401 | 3.682 | 0.908 | 6585 | 7 | Details |
| Geriatrics | 103 | 255331 | 2.497 | 2.487 | 0.697 | 11226 | 6 | Details |
| Gynecology | 130 | 182273 | 1.519 | 1.460 | 0.335 | 9205 | 8 | Details |
| Health Services | 226 | 173694 | 1.465 | 1.380 | 0.421 | 11853 | 7 | Details |
| Health Services Research | 126 | 174975 | 1.916 | 2.081 | 0.611 | 7623 | 6 | Details |
| Hematology | 116 | 354546 | 2.992 | 2.740 | 0.889 | 10254 | 7 | Details |
| Histocytochemistry | 18 | 16628 | 1.293 | 1.475 | 0.385 | 631 | 11 | Details |
| Histology | 20 | 35720 | 1.790 | 2.185 | 0.417 | 1060 | 8 | Details |
| History of Medicine | 107 | 5544 | 0.226 | 0.210 | 0.093 | 1563 | 8 | Details |
| Hospitals | 65 | 33328 | 1.654 | 1.151 | 0.478 | 2283 | 7 | Details |
| Internal Medicine | 36 | 163916 | 3.252 | 2.742 | 0.998 | 5503 | 6 | Details |
| Jurisprudence | 99 | 22776 | 0.683 | 0.643 | 0.204 | 2332 | 7 | Details |
| Laboratory Animal Science | 11 | 10350 | 1.196 | 1.323 | 0.302 | 520 | 8 | Details |
| Library Science | 4 | 1125 | 0.978 | 1.528 | 0.462 | 78 | 6 | Details |
| Medical Informatics | 82 | 154267 | 2.333 | 2.029 | 0.578 | 11098 | 5 | Details |
| Medicine (General) | 756 | 2455814 | 2.909 | 2.533 | 0.826 | 92400 | 6 | Details |
| Metabolism | 114 | 451262 | 3.355 | 3.428 | 0.792 | 11420 | 7 | Details |
| Microbiology | 226 | 782119 | 3.256 | 3.100 | 0.919 | 22940 | 7 | Details |
| Military Medicine | 25 | 12756 | 1.224 | 0.891 | 0.232 | 1200 | 7 | Details |
| Molecular Biology | 291 | 1764725 | 3.471 | 3.409 | 0.902 | 55414 | 7 | Details |
| Nanotechnology | 29 | 201925 | 1.941 | 1.817 | 0.500 | 14076 | 4 | Details |
| Neoplasms | 342 | 1775954 | 3.691 | 3.734 | 0.913 | 41091 | 6 | Details |
| Nephrology | 76 | 184736 | 2.573 | 2.445 | 0.597 | 5513 | 8 | Details |
| Neurology | 469 | 1761350 | 2.571 | 2.757 | 0.594 | 45827 | 8 | Details |
| Neurosurgery | 51 | 117048 | 1.156 | 1.250 | 0.218 | 6267 | 9 | Details |
| Nuclear Medicine | 61 | 77409 | 1.434 | 1.401 | 0.489 | 4496 | 7 | Details |
| Nursing | 482 | 172294 | 0.763 | 0.748 | 0.224 | 19207 | 7 | Details |
| Nutritional Sciences | 163 | 560806 | 2.196 | 2.284 | 0.536 | 25910 | 6 | Details |
| Obstetrics | 130 | 165141 | 1.513 | 1.451 | 0.366 | 8722 | 7 | Details |
| Occupational Medicine | 77 | 42093 | 0.996 | 0.968 | 0.349 | 2761 | 9 | Details |
| Ophthalmology | 176 | 334359 | 1.053 | 1.144 | 0.279 | 20433 | 9 | Details |
| Orthodontics | 24 | 19680 | 0.917 | 0.921 | 0.170 | 955 | 12 | Details |
| Orthopedics | 129 | 354342 | 1.410 | 1.602 | 0.242 | 15964 | 9 | Details |
| Osteopathic Medicine | 2 | 939 | 0.451 | 0.465 | 0.264 | 121 | 8 | Details |
| Otolaryngology | 87 | 94636 | 1.108 | 0.984 | 0.250 | 7005 | 8 | Details |
| Palliative Care | 21 | 46965 | 1.424 | 1.573 | 0.289 | 4066 | 6 | Details |
| Parasitology | 63 | 118080 | 2.473 | 2.182 | 0.656 | 4429 | 6 | Details |
| Pathology | 179 | 268903 | 2.101 | 2.022 | 0.488 | 8432 | 8 | Details |
| Pediatrics | 297 | 467842 | 1.452 | 1.428 | 0.392 | 25316 | 8 | Details |
| Perinatology | 47 | 52035 | 1.201 | 1.298 | 0.266 | 3532 | 7 | Details |
| Pharmacology | 308 | 752308 | 2.298 | 2.242 | 0.584 | 26556 | 7 | Details |
| Pharmacy | 71 | 44203 | 1.060 | 1.029 | 0.233 | 3944 | 6 | Details |
| Photography | 6 | 86 | 0.429 | 0.282 | 0.065 | 31 | 5 | Details |
| Physical and Rehabilitation Medicine | 100 | 122812 | 1.213 | 1.349 | 0.305 | 6535 | 8 | Details |
| Physics | 35 | 108413 | 0.770 | 0.692 | 0.256 | 11528 | 7 | Details |
| Physiology | 231 | 681748 | 2.248 | 2.303 | 0.531 | 18377 | 10 | Details |
| Podiatry | 6 | 2498 | 0.458 | 0.599 | 0.137 | 306 | 7 | Details |
| Primary Health Care | 49 | 45159 | 1.032 | 1.135 | 0.300 | 3727 | 7 | Details |
| Psychiatry | 312 | 614296 | 2.632 | 2.498 | 0.613 | 20398 | 8 | Details |
| Psychology | 281 | 533476 | 1.745 | 1.795 | 0.494 | 19537 | 10 | Details |
| Psychopharmacology | 30 | 81615 | 2.212 | 2.419 | 0.601 | 2172 | 9 | Details |
| Psychophysiology | 67 | 263442 | 2.300 | 2.311 | 0.530 | 8233 | 8 | Details |
| Public Health | 337 | 538521 | 2.550 | 2.295 | 0.739 | 39315 | 5 | Details |
| Pulmonary Medicine | 158 | 372512 | 2.606 | 2.355 | 0.793 | 12893 | 7 | Details |
| Radiology | 131 | 266510 | 2.254 | 1.904 | 0.393 | 11580 | 7 | Details |
| Radiotherapy | 28 | 77144 | 2.044 | 1.981 | 0.408 | 3045 | 8 | Details |
| Reproductive Medicine | 114 | 184220 | 1.633 | 1.770 | 0.371 | 7270 | 9 | Details |
| Rheumatology | 69 | 198986 | 2.730 | 2.690 | 0.848 | 5777 | 8 | Details |
| Science | 88 | 2520246 | 4.128 | 3.759 | 1.179 | 61972 | 6 | Details |
| Sexually Transmitted Diseases | 39 | 24944 | 1.287 | 1.252 | 0.322 | 1396 | 7 | Details |
| Social Sciences | 97 | 107922 | 1.467 | 1.526 | 0.563 | 6163 | 8 | Details |
| Speech-Language Pathology | 31 | 28449 | 0.710 | 0.728 | 0.156 | 2108 | 12 | Details |
| Sports Medicine | 55 | 179647 | 2.100 | 2.370 | 0.453 | 5755 | 8 | Details |
| Statistics as Topic | 57 | 78502 | 0.793 | 0.826 | 0.259 | 4368 | 11 | Details |
| Substance-Related Disorders | 59 | 101972 | 2.048 | 2.136 | 0.467 | 4380 | 7 | Details |
| Technology | 61 | 106889 | 1.197 | 1.126 | 0.391 | 14898 | 4 | Details |
| Teratology | 9 | 5058 | 1.024 | 1.157 | 0.253 | 162 | 10 | Details |
| Therapeutics | 118 | 293911 | 2.580 | 2.512 | 0.626 | 14289 | 5 | Details |
| Toxicology | 142 | 270815 | 1.288 | 1.258 | 0.306 | 22101 | 6 | Details |
| Transplantation | 49 | 124692 | 1.785 | 1.771 | 0.690 | 5002 | 8 | Details |
| Traumatology | 87 | 117166 | 1.120 | 1.214 | 0.243 | 7726 | 7 | Details |
| Tropical Medicine | 79 | 123041 | 1.968 | 1.957 | 0.527 | 5194 | 7 | Details |
| Urology | 88 | 148984 | 1.201 | 1.267 | 0.263 | 8714 | 8 | Details |
| Vascular Diseases | 189 | 627094 | 2.544 | 2.461 | 0.600 | 20295 | 7 | Details |
| Veterinary Medicine | 176 | 266060 | 1.192 | 1.231 | 0.331 | 13415 | 9 | Details |
| Virology | 59 | 278715 | 5.542 | 4.083 | 1.376 | 7020 | 7 | Details |
| Vital Statistics | 22 | 35432 | 15.038 | 9.698 | 6.623 | 547 | 2 | Details |
| Women's Health | 22 | 17821 | 1.169 | 1.255 | 0.233 | 1512 | 7 | Details |
| Zoology | 51 | 96135 | 0.778 | 0.816 | 0.207 | 7422 | 8 | Details |
| (All Fields) | 21053 | 31409232 | 2.358 | 2.273 | 0.626 | 1401224 | 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.