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 | 46 | 66299 | 2.177 | 2.248 | 0.675 | 2769 | 6 | Details |
| Aerospace Medicine | 19 | 3442 | 0.407 | 0.422 | 0.077 | 271 | 16 | Details |
| Allergy and Immunology | 282 | 1020052 | 4.332 | 4.007 | 0.997 | 24274 | 7 | Details |
| Anatomy | 71 | 41073 | 0.973 | 1.075 | 0.323 | 1879 | 12 | Details |
| Anesthesiology | 77 | 88436 | 1.363 | 1.304 | 0.326 | 4795 | 8 | Details |
| Anthropology | 19 | 9570 | 0.769 | 0.811 | 0.202 | 525 | 10 | Details |
| Anti-Infective Agents | 27 | 124854 | 3.483 | 3.115 | 0.814 | 3305 | 7 | Details |
| Antineoplastic Agents | 19 | 46920 | 1.780 | 2.010 | 0.472 | 1722 | 7 | Details |
| Audiology | 38 | 39988 | 0.907 | 0.982 | 0.198 | 2514 | 11 | Details |
| Bacteriology | 21 | 56869 | 2.437 | 2.112 | 0.828 | 1007 | 15 | Details |
| Behavioral Sciences | 110 | 271663 | 1.848 | 1.955 | 0.575 | 11023 | 8 | Details |
| Biochemistry | 356 | 1718905 | 2.606 | 2.499 | 0.679 | 55922 | 8 | Details |
| Biology | 308 | 1110942 | 2.880 | 2.811 | 0.819 | 49457 | 5 | Details |
| Biomedical Engineering | 139 | 374524 | 1.513 | 1.481 | 0.417 | 31158 | 5 | Details |
| Biophysics | 96 | 402186 | 1.477 | 1.291 | 0.372 | 25436 | 7 | Details |
| Biotechnology | 133 | 481150 | 1.802 | 1.831 | 0.486 | 30927 | 6 | Details |
| Botany | 52 | 348358 | 2.615 | 2.743 | 0.694 | 9915 | 8 | Details |
| Brain | 62 | 352836 | 2.668 | 2.644 | 0.660 | 9101 | 9 | Details |
| Cardiology | 264 | 714041 | 2.485 | 2.392 | 0.657 | 26684 | 7 | Details |
| Cell Biology | 222 | 1517399 | 5.089 | 5.136 | 1.256 | 27213 | 7 | Details |
| Chemistry | 153 | 1061929 | 1.715 | 1.611 | 0.482 | 71436 | 6 | Details |
| Chemistry Techniques, Analytical | 53 | 148145 | 1.104 | 1.022 | 0.290 | 10560 | 7 | Details |
| Chemistry, Clinical | 11 | 34549 | 3.410 | 2.544 | 0.710 | 830 | 8 | Details |
| Chiropractic | 2 | 2013 | 0.775 | 1.181 | 0.226 | 53 | 12 | Details |
| Clinical Laboratory Techniques | 45 | 147616 | 3.172 | 3.391 | 0.796 | 3071 | 8 | Details |
| Communicable Diseases | 89 | 425104 | 4.638 | 3.390 | 1.784 | 14740 | 5 | Details |
| Complementary Therapies | 47 | 58831 | 1.202 | 1.093 | 0.235 | 4771 | 6 | Details |
| Computational Biology | 38 | 245092 | 3.012 | 3.230 | 1.054 | 6293 | 8 | Details |
| Critical Care | 47 | 141771 | 3.133 | 2.776 | 0.983 | 3750 | 7 | Details |
| Dentistry | 440 | 268705 | 1.184 | 1.215 | 0.250 | 15105 | 9 | Details |
| Dermatology | 97 | 147268 | 1.199 | 1.231 | 0.302 | 9381 | 8 | Details |
| Diagnostic Imaging | 119 | 331131 | 2.046 | 2.047 | 0.485 | 15240 | 6 | Details |
| Disaster Medicine | 9 | 5088 | 1.162 | 0.936 | 0.216 | 733 | 5 | Details |
| Drug Therapy | 113 | 268928 | 3.097 | 2.876 | 0.807 | 9543 | 6 | Details |
| Education | 73 | 75493 | 1.073 | 1.115 | 0.273 | 6643 | 7 | Details |
| Embryology | 43 | 159636 | 2.880 | 3.155 | 0.674 | 2415 | 10 | Details |
| Emergency Medicine | 51 | 59516 | 1.209 | 1.071 | 0.322 | 5233 | 6 | Details |
| Endocrinology | 161 | 526630 | 3.056 | 3.043 | 0.761 | 13553 | 8 | Details |
| Environmental Health | 170 | 535194 | 1.346 | 1.267 | 0.349 | 63486 | 5 | Details |
| Epidemiology | 86 | 208923 | 2.288 | 2.263 | 0.716 | 7285 | 8 | Details |
| Ethics | 77 | 18502 | 0.761 | 0.717 | 0.233 | 2738 | 6 | Details |
| Family Planning Services | 14 | 4245 | 1.275 | 1.244 | 0.335 | 176 | 8 | Details |
| Forensic Sciences | 25 | 13164 | 0.672 | 0.689 | 0.178 | 1228 | 8 | Details |
| Gastroenterology | 157 | 546442 | 2.882 | 2.898 | 0.627 | 17143 | 7 | Details |
| General Surgery | 380 | 596014 | 1.151 | 1.195 | 0.233 | 38268 | 8 | Details |
| Genetics | 130 | 421712 | 3.288 | 3.359 | 0.793 | 10440 | 7 | Details |
| Genetics, Medical | 80 | 327960 | 3.360 | 3.640 | 0.900 | 6528 | 7 | Details |
| Geriatrics | 100 | 246926 | 2.402 | 2.423 | 0.665 | 10883 | 7 | Details |
| Gynecology | 129 | 179628 | 1.494 | 1.450 | 0.328 | 9214 | 8 | Details |
| Health Services | 221 | 166224 | 1.388 | 1.316 | 0.401 | 11359 | 7 | Details |
| Health Services Research | 120 | 171743 | 1.898 | 2.063 | 0.597 | 7505 | 6 | Details |
| Hematology | 116 | 345814 | 2.939 | 2.706 | 0.875 | 10241 | 7 | Details |
| Histocytochemistry | 18 | 16076 | 1.270 | 1.453 | 0.384 | 631 | 10 | Details |
| Histology | 20 | 34701 | 1.757 | 2.147 | 0.408 | 1058 | 8 | Details |
| History of Medicine | 107 | 5376 | 0.221 | 0.203 | 0.093 | 1526 | 8 | Details |
| Hospitals | 66 | 32822 | 1.632 | 1.138 | 0.457 | 2281 | 7 | Details |
| Internal Medicine | 37 | 164388 | 3.273 | 2.721 | 0.961 | 5709 | 6 | Details |
| Jurisprudence | 98 | 22365 | 0.668 | 0.636 | 0.198 | 2327 | 7 | Details |
| Laboratory Animal Science | 11 | 9746 | 1.156 | 1.280 | 0.297 | 509 | 8 | Details |
| Library Science | 4 | 1100 | 0.957 | 1.492 | 0.372 | 78 | 6 | Details |
| Medical Informatics | 79 | 150923 | 2.283 | 1.993 | 0.563 | 10995 | 5 | Details |
| Medicine (General) | 751 | 2406750 | 2.926 | 2.526 | 0.800 | 92128 | 6 | Details |
| Metabolism | 113 | 438561 | 3.269 | 3.345 | 0.773 | 11316 | 7 | Details |
| Microbiology | 224 | 768464 | 3.208 | 3.069 | 0.895 | 22823 | 7 | Details |
| Military Medicine | 24 | 12327 | 1.198 | 0.870 | 0.240 | 1115 | 6 | Details |
| Molecular Biology | 290 | 1723665 | 3.421 | 3.360 | 0.886 | 55020 | 6 | Details |
| Nanotechnology | 29 | 196308 | 1.881 | 1.762 | 0.487 | 14050 | 4 | Details |
| Neoplasms | 339 | 1747384 | 3.670 | 3.708 | 0.904 | 40863 | 6 | Details |
| Nephrology | 76 | 179783 | 2.503 | 2.397 | 0.567 | 5523 | 8 | Details |
| Neurology | 467 | 1732332 | 2.533 | 2.724 | 0.583 | 45902 | 8 | Details |
| Neurosurgery | 52 | 115387 | 1.130 | 1.238 | 0.208 | 6367 | 9 | Details |
| Nuclear Medicine | 61 | 76017 | 1.419 | 1.389 | 0.470 | 4512 | 7 | Details |
| Nursing | 479 | 168525 | 0.747 | 0.737 | 0.214 | 19154 | 7 | Details |
| Nutritional Sciences | 161 | 550483 | 2.167 | 2.259 | 0.528 | 25656 | 6 | Details |
| Obstetrics | 128 | 162376 | 1.485 | 1.437 | 0.356 | 8728 | 7 | Details |
| Occupational Medicine | 77 | 41059 | 0.974 | 0.956 | 0.336 | 2751 | 9 | Details |
| Ophthalmology | 176 | 325818 | 1.039 | 1.129 | 0.271 | 20430 | 9 | Details |
| Orthodontics | 25 | 19288 | 0.915 | 0.916 | 0.166 | 956 | 12 | Details |
| Orthopedics | 128 | 347167 | 1.386 | 1.580 | 0.235 | 15888 | 9 | Details |
| Osteopathic Medicine | 2 | 906 | 0.432 | 0.446 | 0.256 | 121 | 8 | Details |
| Otolaryngology | 88 | 91652 | 1.081 | 0.965 | 0.244 | 6750 | 8 | Details |
| Palliative Care | 21 | 46206 | 1.404 | 1.557 | 0.283 | 4074 | 6 | Details |
| Parasitology | 63 | 115807 | 2.471 | 2.177 | 0.652 | 4311 | 6 | Details |
| Pathology | 179 | 262271 | 2.070 | 1.996 | 0.480 | 8422 | 8 | Details |
| Pediatrics | 297 | 459174 | 1.426 | 1.411 | 0.368 | 25412 | 8 | Details |
| Perinatology | 47 | 51174 | 1.187 | 1.285 | 0.258 | 3513 | 7 | Details |
| Pharmacology | 310 | 731549 | 2.254 | 2.202 | 0.571 | 26486 | 7 | Details |
| Pharmacy | 72 | 43370 | 1.043 | 1.016 | 0.229 | 3944 | 6 | Details |
| Photography | 6 | 83 | 0.397 | 0.276 | 0.063 | 32 | 5 | Details |
| Physical and Rehabilitation Medicine | 99 | 120271 | 1.202 | 1.337 | 0.296 | 6526 | 8 | Details |
| Physics | 35 | 106186 | 0.757 | 0.682 | 0.252 | 11507 | 7 | Details |
| Physiology | 231 | 660955 | 2.209 | 2.264 | 0.522 | 18333 | 9 | Details |
| Podiatry | 6 | 2450 | 0.444 | 0.594 | 0.146 | 308 | 7 | Details |
| Primary Health Care | 49 | 44199 | 1.017 | 1.121 | 0.287 | 3714 | 7 | Details |
| Psychiatry | 311 | 603238 | 2.553 | 2.452 | 0.585 | 20536 | 8 | Details |
| Psychology | 275 | 520698 | 1.690 | 1.757 | 0.477 | 19401 | 10 | Details |
| Psychopharmacology | 30 | 78793 | 2.170 | 2.373 | 0.580 | 2162 | 8 | Details |
| Psychophysiology | 65 | 257137 | 2.254 | 2.296 | 0.517 | 8221 | 8 | Details |
| Public Health | 331 | 526229 | 2.488 | 2.249 | 0.713 | 39009 | 5 | Details |
| Pulmonary Medicine | 162 | 364392 | 2.557 | 2.327 | 0.767 | 12878 | 7 | Details |
| Radiology | 130 | 260224 | 2.165 | 1.860 | 0.376 | 11427 | 7 | Details |
| Radiotherapy | 28 | 75626 | 2.014 | 1.960 | 0.404 | 3032 | 7 | Details |
| Reproductive Medicine | 107 | 180605 | 1.616 | 1.754 | 0.365 | 7240 | 8 | Details |
| Rheumatology | 69 | 195955 | 2.554 | 2.612 | 0.774 | 5676 | 8 | Details |
| Science | 87 | 2466500 | 4.070 | 3.707 | 1.159 | 61207 | 6 | Details |
| Sexually Transmitted Diseases | 39 | 24555 | 1.283 | 1.244 | 0.306 | 1400 | 7 | Details |
| Social Sciences | 97 | 104947 | 1.431 | 1.492 | 0.538 | 6136 | 8 | Details |
| Speech-Language Pathology | 31 | 27621 | 0.705 | 0.722 | 0.148 | 2098 | 11 | Details |
| Sports Medicine | 54 | 177056 | 2.082 | 2.358 | 0.446 | 5717 | 7 | Details |
| Statistics as Topic | 58 | 76415 | 0.784 | 0.826 | 0.249 | 4345 | 11 | Details |
| Substance-Related Disorders | 58 | 98699 | 1.995 | 2.088 | 0.450 | 4360 | 7 | Details |
| Technology | 60 | 104998 | 1.182 | 1.111 | 0.382 | 14759 | 4 | Details |
| Teratology | 9 | 4953 | 1.017 | 1.149 | 0.247 | 162 | 10 | Details |
| Therapeutics | 118 | 288831 | 2.548 | 2.480 | 0.619 | 14264 | 5 | Details |
| Toxicology | 141 | 263540 | 1.261 | 1.235 | 0.293 | 21982 | 6 | Details |
| Transplantation | 49 | 121456 | 1.732 | 1.736 | 0.653 | 4997 | 8 | Details |
| Traumatology | 87 | 115033 | 1.104 | 1.201 | 0.240 | 7705 | 7 | Details |
| Tropical Medicine | 80 | 121523 | 1.941 | 1.940 | 0.520 | 5184 | 7 | Details |
| Urology | 87 | 146510 | 1.199 | 1.273 | 0.264 | 8544 | 7 | Details |
| Vascular Diseases | 188 | 609561 | 2.498 | 2.419 | 0.585 | 20197 | 7 | Details |
| Veterinary Medicine | 177 | 258759 | 1.176 | 1.214 | 0.327 | 13359 | 9 | Details |
| Virology | 59 | 271847 | 5.413 | 4.013 | 1.342 | 6988 | 7 | Details |
| Vital Statistics | 22 | 34238 | 14.513 | 9.422 | 6.341 | 534 | 2 | Details |
| Women's Health | 21 | 17295 | 1.167 | 1.258 | 0.224 | 1453 | 7 | Details |
| Zoology | 51 | 95092 | 0.775 | 0.813 | 0.204 | 7431 | 8 | Details |
| (All Fields) | 20647 | 30697880 | 2.321 | 2.243 | 0.610 | 1392600 | 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.