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Rick Chappell 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 Rick Chappell 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+

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

Rick Chappell 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 Rick Chappell 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+

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

Research.com Recognitions

  • 2006 - Fellow of the American Statistical Association (ASA)

Overview

Rick Chappell is affiliated with the University of Wisconsin-Madison in the United States. Their research spans multiple disciplines, primarily focusing on Medicine and Mathematics.

The main fields of study for Rick Chappell include Medicine and Mathematics, with significant contributions in subfields such as Statistics and Probability, Psychiatry and Mental Health, Pulmonary and Respiratory Medicine, Cognitive Neuroscience, and Neurology.

Their work addresses several key research topics, including:

  • Dementia and Cognitive Impairment Research
  • Advanced Causal Inference Techniques
  • Statistical Methods in Clinical Trials
  • Statistical Methods and Bayesian Inference
  • Head and Neck Cancer Studies
  • Lung Cancer Treatments and Mutations
  • Lung Cancer Diagnosis and Treatment

Rick Chappell has published research in a variety of scientific journals. Frequent publication venues include:

  • Brain Communications
  • Cancer
  • Parkinsonism & Related Disorders
  • Statistics in Medicine
  • Clinical Infectious Diseases

Recent significant publications by Rick Chappell include:

  • NPC-0501 trial on the value of changing chemoradiotherapy sequence, replacing 5-fluorouracil with capecitabine, and altering fractionation for patients with advanced nasopharyngeal carcinoma, 2020, Cancer
  • Associations between self-reported sleep patterns and health, cognition and amyloid measures: results from the Wisconsin Registry for Alzheimer's Prevention, 2023, Brain Communications
  • Imbalanced randomization in clinical trials, 2020, Statistics in Medicine
  • Predictors of multi-domain cognitive decline following DBS for treatment of Parkinson's disease, 2021, Parkinsonism & Related Disorders
  • Harnessing cognitive trajectory clusterings to examine subclinical decline risk factors, 2023, Brain Communications

Frequent collaborators with Rick Chappell include:

  • Lianlian Du
  • Tobey J. Betthauser
  • Sterling C. Johnson
  • William J. Marks
  • Frances M. Weaver

Rick Chappell was recognized as a Fellow of the American Statistical Association (ASA) in 2006.

Best Publications

  • Is α/β for prostate tumors really low?

    Jack Fowler;Rick Chappell;Mark Ritter

  • A multiinstitutional outcome and prognostic factor analysis of radiosurgery for resectable single brain metastasis

    Richard M. Auchter;John P. Lamond;Eben Alexander;John M. Buatti

  • A multi-institutional review of radiosurgery alone vs. radiosurgery with whole brain radiotherapy as the initial management of brain metastases.

    Penny K Sneed;John H Suh;Steven J Goetsch;Seema N Sanghavi

  • Sequential designs for phase I clinical trials with late-onset toxicities.

    Ying Kuen Cheung;Rick Chappell

  • Preliminary Results of a Randomized Study on Therapeutic Gain by Concurrent Chemotherapy for Regionally-Advanced Nasopharyngeal Carcinoma: NPC-9901 Trial by the Hong Kong Nasopharyngeal Cancer Study Group

    Anne W.M. Lee;W.H. Lau;Stewart Y. Tung;Daniel T.T. Chua

  • What hypofractionated protocols should be tested for prostate cancer

    Jack F Fowler;Mark A Ritter;Rick J Chappell;David J Brenner

  • THE ADVERSE EFFECT OF TREATMENT PROLONGATION IN CERVICAL CARCINOMA

    Daniel G. Petereit;Jann N. Sarkaria;Richard Chappell;John F. Fowler

  • The 5-year incidence and progression of hearing loss: the epidemiology of hearing loss study.

    Karen J Cruickshanks;Ted S Tweed;Terry L Wiley;Barbara E K Klein

  • Randomized Trial of Radiotherapy Plus Concurrent–Adjuvant Chemotherapy vs Radiotherapy Alone for Regionally Advanced Nasopharyngeal Carcinoma

    Anne W. M. Lee;Stewart Y. Tung;Daniel T. T. Chua;Roger K. C. Ngan

  • Effects of Tamoxifen on Cardiovascular Risk Factors in Postmenopausal Women After 5 Years of Treatment

    Richard R. Love;Donald A. Wiebe;Jan M. Feyzi;Polly A. Newcomb

  • Survival after Relapse in Childhood Acute Lymphoblastic Leukemia Impact of Site and Time to First Relapse — the Children's Cancer Group Experience

    Paul S. Gaynon;Roger P. Qu;Richard J. Chappell;Michael L. N. Willoughby

  • On semi-competing risks data

    J. P. Fine;H. Jiang;R. Chappell

  • Primary and Recurrent Crohn's Disease. Experience With 1379 Patients

    Fabrizio Michelassi;Tommaso Balestracci;Rick Chappell;George E. Block

  • The impact of daily setup variations on head-and-neck intensity-modulated radiation therapy

    Theodore S. Hong;Wolfgang A. Tomé;Richard J. Chappell;Prakash Chinnaiyan

  • A new approach to dose escalation in non-small-cell lung cancer.

    Minesh Mehta;Rufus Scrimger;Rock Mackie;Bhudatt Paliwal

  • Radiosurgery for patients with brain metastases: a multi-institutional analysis, stratified by the RTOG recursive partitioning analysis method

    Seema N Sanghavi;Saranarendra S Miranpuri;Richard Chappell;John M Buatti

  • Effect of tamoxifen on lumbar spine bone mineral density in postmenopausal women after 5 years.

    Richard R. Love;Howard S. Barden;Richard B. Mazess;Sol Epstein

  • Primary tumor volume of nasopharyngeal carcinoma: prognostic significance for local control.

    Wai Man Sze;Anne W M Lee;Tsz Kok Yau;Rebecca M W Yeung

  • Oral transmissibility of prion disease is enhanced by binding to soil particles.

    Christopher J Johnson;Joel A Pedersen;Rick J Chappell;Debbie McKenzie

  • Prostate-specific antigen as a predictor of radiotherapy response and patterns of failure in localized prostate cancer.

    Mark A. Ritter;Edward M. Messing;Thomas G. Shanahan;Scott Potts

Frequent Co-Authors

Jack F. Fowler
Jack F. Fowler University of Wisconsin–Madison
Minesh P. Mehta
Minesh P. Mehta University of Maryland, Baltimore
Sterling C. Johnson
Sterling C. Johnson University of Wisconsin–Madison
Ronald Klein
Ronald Klein University of Wisconsin–Madison
Sanjay Asthana
Sanjay Asthana University of Wisconsin–Madison
Timothy J. Kinsella
Timothy J. Kinsella Brown University
Karen J. Cruickshanks
Karen J. Cruickshanks University of Wisconsin–Madison
Barbara E. K. Klein
Barbara E. K. Klein University of Wisconsin–Madison
Robert B. Wallace
Robert B. Wallace University of Iowa
Rebecca L. Koscik
Rebecca L. Koscik University of Wisconsin–Madison

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