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Bruce W. Turnbull

Bruce W. Turnbull

D-Index & Metrics

Mathematics

D-Index
43
Citations
15567
World Ranking
1645
National Ranking
708

Bruce W. Turnbull publication distribution in Mathematics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mathematics in 2026. The highlighted bar marks where Bruce W. Turnbull sits on this spectrum.

42–46 publications: 3 scientists 47–51 publications: 5 scientists 52–56 publications: 7 scientists 57–61 publications: 20 scientists 62–66 publications: 14 scientists 67–71 publications: 25 scientists 72–76 publications: 19 scientists 77–81 publications: 35 scientists 82–86 publications: 50 scientists 87–91 publications: 60 scientists 92–96 publications: 86 scientists 97–101 publications: 84 scientists 102–106 publications: 83 scientists 107–111 publications: 90 scientists 112–116 publications: 99 scientists 117–121 publications: 90 scientists 122–126 publications: 91 scientists 127–131 publications: 109 scientists 132–136 publications: 110 scientists 137–141 publications: 98 scientists 142–146 publications: 112 scientists 147–151 publications: 102 scientists 152–156 publications: 88 scientists 157–161 publications: 106 scientists 162–166 publications: 83 scientists 167–171 publications: 102 scientists 172–176 publications: 77 scientists 177–181 publications: 81 scientists 182–186 publications: 78 scientists 187–191 publications: 71 scientists 192–196 publications: 92 scientists 197–201 publications: 64 scientists 202–206 publications: 69 scientists 207–211 publications: 64 scientists 212–216 publications: 62 scientists 217–221 publications: 58 scientists 222–226 publications: 53 scientists 227–231 publications: 50 scientists 232–236 publications: 46 scientists 237–241 publications: 46 scientists 242–246 publications: 46 scientists 247–251 publications: 43 scientists 252–256 publications: 29 scientists 257–261 publications: 45 scientists 262–266 publications: 30 scientists 267–271 publications: 33 scientists 272–276 publications: 34 scientists 277–281 publications: 30 scientists 282–286 publications: 31 scientists 287–291 publications: 21 scientists 292–296 publications: 34 scientists 297–301 publications: 26 scientists 302–306 publications: 10 scientists 307–311 publications: 17 scientists 312–316 publications: 23 scientists 317–321 publications: 13 scientists 322–326 publications: 16 scientists 327–331 publications: 26 scientists 332–336 publications: 13 scientists 337–341 publications: 13 scientists 342–346 publications: 16 scientists 347–351 publications: 17 scientists 352–356 publications: 12 scientists 357–361 publications: 18 scientists 362–366 publications: 18 scientists 367–371 publications: 9 scientists 372–376 publications: 11 scientists 377–381 publications: 8 scientists 382–386 publications: 8 scientists 387–391 publications: 9 scientists 392–396 publications: 9 scientists 397–401 publications: 8 scientists 402–406 publications: 11 scientists 407–411 publications: 6 scientists 412–416 publications: 6 scientists 417–421 publications: 9 scientists 422–426 publications: 8 scientists 427–431 publications: 5 scientists 432–436 publications: 8 scientists 437–441 publications: 8 scientists 442–446 publications: 4 scientists 447–451 publications: 4 scientists 452–456 publications: 4 scientists 457–461 publications: 2 scientists 462–466 publications: 2 scientists 467–471 publications: 4 scientists 472–476 publications: 3 scientists 477–481 publications: 3 scientists 482–486 publications: 6 scientists 487–491 publications: 3 scientists 492–496 publications: 5 scientists 497–501 publications: 5 scientists 502–506 publications: 1 scientists 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientists 522–526 publications: 3 scientists 527–531 publications: 1 scientists 532–536 publications: 4 scientists 537+ publications: 100 scientists
42 publications 537+

This scientist: 115 publications — 18th percentile

18% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 537 publications or more.

Bruce W. Turnbull D-index placement in Mathematics in 2026

The chart shows the D-index (discipline H-index) distribution of Mathematics scientists ranked by Research.com in 2026. The highlighted bar marks where Bruce W. Turnbull sits on this spectrum.

30 D-Index: 174 scientists 31 D-Index: 151 scientists 32 D-Index: 174 scientists 33 D-Index: 117 scientists 34 D-Index: 136 scientists 35 D-Index: 127 scientists 36 D-Index: 145 scientists 37 D-Index: 153 scientists 38 D-Index: 150 scientists 39 D-Index: 150 scientists 40 D-Index: 138 scientists 41 D-Index: 136 scientists 42 D-Index: 93 scientists 43 D-Index: 108 scientists 44 D-Index: 115 scientists 45 D-Index: 112 scientists 46 D-Index: 103 scientists 47 D-Index: 75 scientists 48 D-Index: 59 scientists 49 D-Index: 67 scientists 50 D-Index: 60 scientists 51 D-Index: 57 scientists 52 D-Index: 59 scientists 53 D-Index: 62 scientists 54 D-Index: 60 scientists 55 D-Index: 50 scientists 56 D-Index: 42 scientists 57 D-Index: 54 scientists 58 D-Index: 50 scientists 59 D-Index: 42 scientists 60 D-Index: 41 scientists 61 D-Index: 35 scientists 62 D-Index: 40 scientists 63 D-Index: 21 scientists 64 D-Index: 31 scientists 65 D-Index: 27 scientists 66 D-Index: 29 scientists 67 D-Index: 19 scientists 68 D-Index: 25 scientists 69 D-Index: 17 scientists 70 D-Index: 18 scientists 71 D-Index: 12 scientists 72 D-Index: 14 scientists 73 D-Index: 13 scientists 74 D-Index: 18 scientists 75 D-Index: 9 scientists 76 D-Index: 11 scientists 77 D-Index: 10 scientists 78 D-Index: 9 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 10 scientists 82 D-Index: 5 scientists 83 D-Index: 5 scientists 84 D-Index: 13 scientists 85 D-Index: 6 scientists 86+ D-Index: 99 scientists
30 D-Index 86+

This scientist: 43 D-Index — 54th percentile

54% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 86 D-Index or more.

Research.com Recognitions

  • 1985 - Fellow of the American Statistical Association (ASA)

Overview

Bruce W. Turnbull is affiliated with Cornell University in the United States. Their academic and research activities are grounded in this institution.

The scientist has been recognized as a Fellow of the American Statistical Association (ASA) since 1985.

Best Publications

  • Effects of Selenium Supplementation for Cancer Prevention in Patients With Carcinoma of the Skin: A Randomized Controlled Trial

    Larry C. Clark;Gerald F. Combs;Bruce W. Turnbull;Elizabeth H. Slate

  • The Empirical Distribution Function with Arbitrarily Grouped, Censored, and Truncated Data

    Bruce W. Turnbull

  • Group Sequential Methods with Applications to Clinical Trials

    Christopher Jennison;Bruce W. Turnbull

  • Baseline characteristics and the effect of selenium supplementation on cancer incidence in a randomized clinical trial: a summary report of the Nutritional Prevention of Cancer Trial.

    Anna J Duffield-Lillico;Mary E Reid;Bruce W Turnbull;Gerald F Combs

  • Nonparametric Estimation of a Survivorship Function with Doubly Censored Data

    Bruce W. Turnbull

  • Nonparametric and semiparametric estimation of the receiver operating characteristic curve

    Fushing Hsieh;Bruce W. Turnbull

  • Selenium supplementation and secondary prevention of nonmelanoma skin cancer in a randomized trial.

    Anna J. Duffield-Lillico;Elizabeth H. Slate;Mary E. Reid;Bruce W. Turnbull

  • Interim analyses: the repeated confidence interval approach

    Christopher Jennison;Bruce W. Turnbull

  • Latent class models for joint analysis of longitudinal biomarker and event process data: Application to longitudinal prostate-specific antigen readings and prostate cancer

    Haiqun Lin;Bruce W Turnbull;Charles E McCulloch;Elizabeth H Slate

  • Statistical Approaches to Interim Monitoring of Medical Trials: A Review and Commentary

    Christopher Jennison;Bruce W. Turnbull

  • Group Sequential Methods

    Christopher Jennison;Bruce Turnbull

  • Repeated confidence intervals for group sequential clinical trials

    Christopher Jennison;Christopher Jennison;Bruce W. Turnbull;Bruce W. Turnbull

  • Mid-course sample size modification in clinical trials based on the observed treatment effect.

    Christopher Jennison;Bruce W. Turnbull

  • Group sequential tests for bivariate response: interim analyses of clinical trials with both efficacy and safety endpoints

    Christopher Jennison;Bruce W. Turnbull

  • Group Sequential Analysis Incorporating Covariate Information

    Christopher Jennison;Bruce W. Turnbull

  • Confidence Intervals for a Binomial Parameter Following a Multistage Test With Application to MIL-STD 105D and Medical Trials

    Christopher Jennison;Bruce W. Turnbull

  • Survivorship Analysis of Heart Transplant Data

    Bruce W. Turnbull;Byron Wm. Brown;Marie Hu

  • Adaptive and nonadaptive group sequential tests

    Christopher Jennison;Bruce W. Turnbull

  • Exact calculations for sequential t, X2 and F tests

    Christopher Jennison;Bruce W. Turnbull

  • The Indirect Method: Inference Based on Intermediate Statistics—A Synthesis and Examples

    Wenxin Jiang;Bruce Turnbull

  • Mid-course sample size modification in clinical trials

    Christopher Jennison;Bruce W. Turnbull

Frequent Co-Authors

Christopher Jennison
Christopher Jennison University of Bath
Gerald F. Combs
Gerald F. Combs Cornell University
James R. Marshall
James R. Marshall Roswell Park Cancer Institute
Charles E. McCulloch
Charles E. McCulloch University of California, San Francisco
Yrjö T. Gröhn
Yrjö T. Gröhn Cornell University
Søren Saxmose Nielsen
Søren Saxmose Nielsen University of Copenhagen
Martin T. Wells
Martin T. Wells Cornell University
David S. Alberts
David S. Alberts University of Arizona
Russell R. Barton
Russell R. Barton Pennsylvania State University
John D. Minna
John D. Minna The University of Texas Southwestern Medical Center

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