Concepedia

Unequal Allocation Ratios

Unequal Allocation Ratios is a randomization method in clinical trial design that systematically assigns participants to treatment and control groups in proportions that deviate from a 1:1 ratio, thereby enabling differential group sizes to meet ethical, logistical, or statistical efficiency objectives.

53

Publications

2.6K

Citations

160

Authors

89

Institutions

Publications per year

2017–2026

9

Variants

Unbalanced AllocationUnbalanced RandomizationUnequal Randomization

Parents

Publications

53

Implementation of an open-source customizable minimization program for allocation of patients to parallel groups in clinical trials

Mahmoud Saghaei, Sara Saghaei · Journal of Biomedical Science and Engineering · 2011 · 247 citations · Full text

, , +16

Sequential boundaries approach in clinical trials with unequal allocation ratios

Peyman Jafari, Seyyed Mohammad Taghi Ayatollahi, Javad Behboodian · BMC Medical Research Methodology · 2006 · 217 citations · Full text

, , +16

Allocation of patients to treatment groups in a controlled clinical study

Susan J. White, Laurence S. Freedman · British Journal of Cancer · 1978 · 189 citations

, , +11

Randomization by minimization for unbalanced treatment allocation

Baoguang Han, Nathan Enas, Damian McEntegart · Statistics in Medicine · 2009 · 117 citations

, , +12

Queen Control of Sex Ratio in Fire Ants

Luc Passera, Serge Aron, Edward L. Vargo et al. · Science · 2001 · 112 citations · Full text

, , +17

1–5 of 53

Authors

160

  1. JM
    Joan M. Herbers

    University of Vermont, United States

    3 publications · 190 citations

    3

    h-index

  2. YT
    Yevgen Tymofyeyev

    Merck & Co., Inc., Rahway, NJ, USA (United States), United States

    3 publications · 129 citations

    3

    h-index

  3. JG
    Jiin‐Huarng Guo

    National Cheng Kung University, Taiwan

    2 publications · 36 citations

    2

    h-index

  4. PJ
    Peyman Jafari

    Shiraz University of Medical Sciences, Iran

    2 publications · 241 citations

    2

    h-index

  5. DE
    Diane E. Sholomskas

    Yale University, United States

    1 publications · 23 citations

    1

    h-index

1–5 of 160

Institutions

89

  1. Merck & Co., Inc., Rahway, NJ, USA (United States)

    Rahway, United States

    5 h-index

    9 publications

    297 citations

  2. University of Washington

    Seattle, United States

    2 h-index

    4 publications

    76 citations

  3. Radboud University Medical Center

    Nijmegen, The Netherlands

    2 h-index

    3 publications

    42 citations

  4. National Pingtung University

    Pingtung City, Taiwan

    2 h-index

    2 publications

    36 citations

  5. McGill University

    Montreal, Canada

    2 h-index

    2 publications

    218 citations

  6. National Cheng Kung University

    Tainan City, Taiwan

    2 h-index

    3 publications

    59 citations

  7. Shiraz University of Medical Sciences

    Shiraz, Iran

    2 h-index

    5 publications

    506 citations

  8. Radboud University Nijmegen

    Nijmegen, The Netherlands

    2 h-index

    3 publications

    42 citations

1–8 of 89

Venues

  1. Statistics in Medicine

    16 publications · 643 citations

    15

    h-index

  2. Contemporary Clinical Trials

    2 publications · 70 citations

    2

    h-index

  3. Trials

    2 publications · 47 citations

    2

    h-index

  4. Behavioral Ecology and Sociobiology

    2 publications · 94 citations

    2

    h-index

  5. 2

    h-index

1–5