World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
102
Citations
86498
World Ranking
7472
National Ranking
3906

Karen C. Johnson publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Karen C. Johnson sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 482 publications — 55th percentile

55% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Karen C. Johnson D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Karen C. Johnson sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 102 D-Index — 63rd percentile

63% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Karen C. Johnson is affiliated with the University of Tennessee Health Science Center in the United States. Their research output is primarily within the broad field of Medicine, with notable focus on several subfields such as Physiology, Public Health, Environmental and Occupational Health, Endocrinology, Diabetes and Metabolism, Cardiology and Cardiovascular Medicine, and Surgery.

Their publication record includes work on topics that relate to diet, metabolism, and related health outcomes. Key areas of focus include diet and metabolism studies, nutritional studies and diet, nutrition and health in aging, vitamin D research studies, cancer risks and factors, cardiovascular health and risk factors, and obesity and health practices.

Frequent research collaborators include Mark A. Espeland, JoAnn E. Manson, Alyssa Matthews, Vagner Castro, and Tim Wendler, with whom they have coauthored multiple publications.

Johnson's work has appeared in a range of scientific venues, with substantial publication counts in:

  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
  • UNC Libraries
  • Obesity
  • The Journal of Clinical Endocrinology & Metabolism
  • Diabetes Care

Some notable recent papers include:

  • Final Report of a Trial of Intensive versus Standard Blood-Pressure Control (2021, New England Journal of Medicine)
  • Association of Menopausal Hormone Therapy With Breast Cancer Incidence and Mortality During Long-term Follow-up of the Women's Health Initiative Randomized Clinical Trials (2020, JAMA)
  • Dietary Modification and Breast Cancer Mortality: Long-Term Follow-Up of the Women's Health Initiative Randomized Trial (2020, Journal of Clinical Oncology)
  • Association of Intensive Lifestyle Intervention, Fitness, and Body Mass Index With Risk of Heart Failure in Overweight or Obese Adults With Type 2 Diabetes Mellitus (2020, Circulation)
  • Effects of intensive versus standard blood pressure control on domain-specific cognitive function: a substudy of the SPRINT randomised controlled trial (2020, The Lancet Neurology)

Best Publications

  • Risks and benefits of estrogen plus progestin in healthy postmenopausal women: Principal results from the Women's Health Initiative randomized controlled trial

    Jacques E. Rossouw;Garnet L. Anderson;Ross L. Prentice;Andrea Z. LaCroix

  • A Randomized Trial of Intensive versus Standard Blood-Pressure Control

    Jackson T. Wright;Jeff D. Williamson;Paul K. Whelton;Joni K. Snyder

  • Effects of conjugated equine estrogen in postmenopausal women with hysterectomy: the Women's Health Initiative randomized controlled trial

    Garnet L. Anderson;Marian C. Limacher;Annlouise R. Assaf;Tamsen Bassford

  • Estrogen plus progestin and the risk of coronary heart disease

    JoAnn A E Manson;Judith Hsia;Karen C. Johnson;Jacques E. Rossouw

  • Cardiovascular effects of intensive lifestyle intervention in type 2 diabetes

    R. R. Wing;P. Bolin;F. L. Brancati;G. A. Bray

  • Calcium plus vitamin D supplementation and the risk of fractures.

    Rebecca D. Jackson;Andrea Z. LaCroix;Margery Gass;Robert B. Wallace

  • Menopausal hormone therapy and health outcomes during the intervention and extended poststopping phases of the women's health initiative randomized trials

    Jo Ann E. Manson;Rowan T. Chlebowski;Marcia L. Stefanick;Aaron K. Aragaki

  • Long-term effects of a lifestyle intervention on weight and cardiovascular risk factors in individuals with type 2 diabetes mellitus: four-year results of the Look AHEAD trial.

    Rena R. Wing;Judy L. Bahnson;George A. Bray;Jeanne M. Clark

  • Sodium Reduction and Weight Loss in the Treatment of Hypertension in Older Persons: A Randomized Controlled Trial of Nonpharmacologic Interventions in the Elderly (TONE)

    Paul K. Whelton;Lawrence J. Appel;Mark A. Espeland;William B. Applegate

  • Low-fat dietary pattern and risk of cardiovascular disease : The women's health initiative randomized controlled dietary modification trial

    Barbara V. Howard;Barbara V. Howard;Linda Van Horn;Judith Hsia;JoAnn E. Manson

  • Reduction in Weight and Cardiovascular Disease Risk Factors in Individuals With Type 2 Diabetes: One-Year Results of the Look AHEAD Trial

    Mark Espeland;Xavier Pi-Sunyer;George Blackburn;Frederick L. Brancati

  • Calcium plus Vitamin D Supplementation and the Risk of Colorectal Cancer

    Jean Wactawski-Wende;Jane Morley Kotchen;Garnet L. Anderson;Annlouise R. Assaf;Annlouise R. Assaf

  • Effect of estrogen plus progestin on global cognitive function in postmenopausal women: the Women's Health Initiative Memory Study: a randomized controlled trial.

    Stephen R. Rapp;Mark A. Espeland;Sally A. Shumaker;Victor W. Henderson

  • Effect of Intensive vs Standard Blood Pressure Control on Probable Dementia: A Randomized Clinical Trial.

    Jeff D. Williamson;Nicholas M. Pajewski;Alexander P. Auchus

  • Exemestane for Breast-Cancer Prevention in Postmenopausal Women

    Paul E. Goss;James N. Ingle;José E. Alés-Martínez;Angela M. Cheung

  • Low-Fat dietary pattern and risk of invasive breast cancer: The women's health initiative randomized controlled dietary modification trial

    Ross L. Prentice;Bette Caan;Rowan T. Chlebowski;Ruth Patterson

  • Menarche, menopause, and breast cancer risk: Individual participant meta-analysis, including 118 964 women with breast cancer from 117 epidemiological studies

    N. Hamajima;K. Hirose;K. Tajima;T. Rohan

  • Look AHEAD (Action for Health in Diabetes): design and methods for a clinical trial of weight loss for the prevention of cardiovascular disease in type 2 diabetes.

    Donna H Ryan;Mark A Espeland;Gary D Foster;Steven M Haffner

  • Calcium/Vitamin D Supplementation and Cardiovascular Events

    Judith Hsia;Gerardo Heiss;Hong Ren;Matthew Allison

  • Association of an intensive lifestyle intervention with remission of type 2 diabetes.

    Edward W. Gregg;Haiying Chen;Lynne E. Wagenknecht;Jeanne M. Clark

Frequent Co-Authors

JoAnn E. Manson
JoAnn E. Manson Harvard Medical School
Jean Wactawski-Wende
Jean Wactawski-Wende University at Buffalo, State University of New York
Marcia L. Stefanick
Marcia L. Stefanick Stanford University
Cora E. Lewis
Cora E. Lewis University of Alabama at Birmingham
Rowan T. Chlebowski
Rowan T. Chlebowski UCLA Medical Center
Ross L. Prentice
Ross L. Prentice Fred Hutchinson Cancer Research Center
Mark A. Espeland
Mark A. Espeland Wake Forest University
Charles B. Eaton
Charles B. Eaton Brown University
Lewis H. Kuller
Lewis H. Kuller University of Pittsburgh
Garnet L. Anderson
Garnet L. Anderson Fred Hutchinson Cancer Research Center

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