A Donner

Summary

Affiliation: University of Western Ontario
Country: Canada

Publications

  1. doi request reprint Imputation strategies for missing continuous outcomes in cluster randomized trials
    Monica Taljaard
    Ottawa Health Research Institute, Clinical Epidemiology Program, Ottawa Hospital, 1053 Carling Avenue, Ottawa, Ontario, Canada
    Biom J 50:329-45. 2008
  2. pmc Pitfalls of and controversies in cluster randomization trials
    Allan Donner
    Department of Epidemiology and Biostatistics, University of Western Ontario, London, Canada
    Am J Public Health 94:416-22. 2004
  3. pmc A mass vaccination campaign targeting adults and children to prevent typhoid fever in Hechi; expanding the use of Vi polysaccharide vaccine in southeast China: a cluster-randomized trial
    Jin Yang
    Division of Bacterial Diseases, Guangxi Center for Disease Control, 80 Taoyuan Road, Nanning 530021, Guangxi, China
    BMC Public Health 5:49. 2005
  4. ncbi request reprint Sample size requirements for the comparison of two or more coefficients of inter-observer agreement
    A Donner
    Department of Epidemiology and Biostatistics, University of Western Ontario, London, Canada
    Stat Med 17:1157-68. 1998
  5. ncbi request reprint Interval estimation for a difference between intraclass kappa statistics
    Allan Donner
    Department of Epidemiology and Biostatistics, University of Western Ontario, London, Canada
    Biometrics 58:209-15. 2002
  6. ncbi request reprint Methods for the statistical analysis of binary data in split-cluster designs
    Allan Donner
    Department of Epidemiology and Biostatistics, University of Western Ontario, London, Ontario N6A 5C1, Canada
    Biometrics 60:919-25. 2004
  7. ncbi request reprint Statistical methods for the meta-analysis of cluster randomization trials
    A Donner
    Department of Epidemiology and Biostatistics, Kresge Building, The University of Western Ontario, London, Ontario N6A 5C1, Canada
    Stat Methods Med Res 10:325-38. 2001
  8. ncbi request reprint Issues in the meta-analysis of cluster randomized trials
    Allan Donner
    Department of Epidemiology and Biostatistics, The University of Western Ontario, London, Ontario, N6A 5C1, Canada
    Stat Med 21:2971-80. 2002
  9. ncbi request reprint The merits of breaking the matches: a cautionary tale
    Allan Donner
    Department of Epidemiology and Biostatistics, Schulich School of Medicine, University of Western Ontario, London, Canada
    Stat Med 26:2036-51. 2007
  10. ncbi request reprint Construction of confidence limits about effect measures: a general approach
    G Y Zou
    Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont, Canada N6A 5C1
    Stat Med 27:1693-702. 2008

Collaborators

Detail Information

Publications38

  1. doi request reprint Imputation strategies for missing continuous outcomes in cluster randomized trials
    Monica Taljaard
    Ottawa Health Research Institute, Clinical Epidemiology Program, Ottawa Hospital, 1053 Carling Avenue, Ottawa, Ontario, Canada
    Biom J 50:329-45. 2008
    ..Within-cluster multiple imputation is shown to be the least powerful among the procedures considered...
  2. pmc Pitfalls of and controversies in cluster randomization trials
    Allan Donner
    Department of Epidemiology and Biostatistics, University of Western Ontario, London, Canada
    Am J Public Health 94:416-22. 2004
    ..We discuss several topics related to these issues, with emphasis on the choices that must be made in the planning stages of a trial and on some potential pitfalls to be avoided...
  3. pmc A mass vaccination campaign targeting adults and children to prevent typhoid fever in Hechi; expanding the use of Vi polysaccharide vaccine in southeast China: a cluster-randomized trial
    Jin Yang
    Division of Bacterial Diseases, Guangxi Center for Disease Control, 80 Taoyuan Road, Nanning 530021, Guangxi, China
    BMC Public Health 5:49. 2005
    ....
  4. ncbi request reprint Sample size requirements for the comparison of two or more coefficients of inter-observer agreement
    A Donner
    Department of Epidemiology and Biostatistics, University of Western Ontario, London, Canada
    Stat Med 17:1157-68. 1998
    ..I consider cases of both a continuous and a dichotomous outcome measure. Three examples illustrate the results...
  5. ncbi request reprint Interval estimation for a difference between intraclass kappa statistics
    Allan Donner
    Department of Epidemiology and Biostatistics, University of Western Ontario, London, Canada
    Biometrics 58:209-15. 2002
    ..Sample size requirements that achieve a prespecified expected width for a confidence interval about a difference of kappa statistic are also presented...
  6. ncbi request reprint Methods for the statistical analysis of binary data in split-cluster designs
    Allan Donner
    Department of Epidemiology and Biostatistics, University of Western Ontario, London, Ontario N6A 5C1, Canada
    Biometrics 60:919-25. 2004
    ....
  7. ncbi request reprint Statistical methods for the meta-analysis of cluster randomization trials
    A Donner
    Department of Epidemiology and Biostatistics, Kresge Building, The University of Western Ontario, London, Ontario N6A 5C1, Canada
    Stat Methods Med Res 10:325-38. 2001
    ..The advantages and disadvantages of each method are discussed in the context of an example...
  8. ncbi request reprint Issues in the meta-analysis of cluster randomized trials
    Allan Donner
    Department of Epidemiology and Biostatistics, The University of Western Ontario, London, Ontario, N6A 5C1, Canada
    Stat Med 21:2971-80. 2002
    ..In this paper we review and comment on a selected number of these issues, including problems of study heterogeneity, difficulties in estimating design effects from individual trials and the choice of statistical methods...
  9. ncbi request reprint The merits of breaking the matches: a cautionary tale
    Allan Donner
    Department of Epidemiology and Biostatistics, Schulich School of Medicine, University of Western Ontario, London, Canada
    Stat Med 26:2036-51. 2007
    ....
  10. ncbi request reprint Construction of confidence limits about effect measures: a general approach
    G Y Zou
    Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont, Canada N6A 5C1
    Stat Med 27:1693-702. 2008
    ..Numerical evaluation shows that this closed-form procedure outperforms existing methods, including the bootstrap...
  11. ncbi request reprint Statistical inferences for a twin correlation with multinomial outcomes
    E Bartfay
    Department of Epidemiology and Biostatistics, The University of Western Ontario, London, Ontario, Canada
    Stat Med 20:249-62. 2001
    ..Other inference problems are also discussed, including point estimation, hypothesis testing and sample size estimation. An example is included...
  12. ncbi request reprint Group sequential methods for cluster randomization trials with binary outcomes
    Guang Yong Zou
    Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
    Clin Trials 2:479-87. 2005
    ....
  13. ncbi request reprint Current and future challenges in the design and analysis of cluster randomization trials
    N Klar
    Division of Preventive Oncology, Cancer Care Ontario, Toronto, Ontario, M5G 2L7, Canada
    Stat Med 20:3729-40. 2001
    ..Brief mention is also made of issues related to economic analysis and to the planning and conduct of meta-analyses for cluster randomization trials. Recommendations for reporting are also discussed...
  14. ncbi request reprint Statistical implications of the choice between a dichotomous or continuous trait in studies of interobserver agreement
    A Donner
    Department of Epidemiology and Biostatistics, The University of Western Ontario, London, Ontario N6A 5C1, Canada
    Biometrics 50:550-5. 1994
    ..In both cases, and particularly in the second, the loss of power associated with measuring the trait on a dichotomous scale is shown to be always severe and frequently prohibitive...
  15. ncbi request reprint The effect of collapsing multinomial data when assessing agreement
    E Bartfay
    Department of Epidemiology and Biostatistics, The University of Western Ontario, London, Ontario, Canada
    Int J Epidemiol 29:1070-5. 2000
    ..The effect of dichotomization on sample size requirements for testing hypotheses concerning kappa is also evaluated...
  16. ncbi request reprint Meta-analysis of community-based cluster randomization trials with binary outcomes
    Gerarda A Darlington
    Department of Mathematics and Statistics, University of Guelph, Guelph, Ontario, Canada
    Clin Trials 4:491-8. 2007
    ..However, this task requires consideration of both the likely dependencies among cluster members (intracluster correlation) and stratification based on the studies considered...
  17. ncbi request reprint Confidence interval estimation of the intraclass correlation coefficient for binary outcome data
    Guangyong Zou
    Robarts Clinical Trials, Robarts Research Institute, London, Ontario N6A 5K8, Canada
    Biometrics 60:807-11. 2004
    ..Simulation results indicate that confidence intervals based on the estimator proposed by Fleiss and Cuzick provide coverage levels close to nominal over a wide range of parameter combinations. Two examples are presented...
  18. ncbi request reprint Responsiveness of the short form-36, disability of the arm, shoulder, and hand questionnaire, patient-rated wrist evaluation, and physical impairment measurements in evaluating recovery after a distal radius fracture
    J C MacDermid
    Hand and Upper Limb Centre, St Joseph s Health Centre, London, Ontario, Canada
    J Hand Surg Am 25:330-40. 2000
    ..Of the physical tests, grip strength was most responsive, followed by range of motion. Responsive patient-rating scales and physical performance evaluations can assist with outcome evaluation of patients with distal radius fracture...
  19. ncbi request reprint Bivariate models for co-aggregation of dichotomous traits in twins
    M M Shoukri
    Department of Epidemiology and Biostatistics, Schulich School of Medicine, University of Western Ontario, London, Ont, Canada N6A 5C1
    Stat Med 26:336-51. 2007
    ..An example based on the Australian population-based twin registry published data is given to illustrate the methodology...
  20. pmc Comparison of two dependent within subject coefficients of variation to evaluate the reproducibility of measurement devices
    Mohamed M Shoukri
    Department of Epidemiology and Biostatistics, Schulich School of Medicine, University of Western Ontario, London, Ontario, Canada
    BMC Med Res Methodol 8:24. 2008
    ..Comparison of reproducibility or reliability of measurement devices or methods on the same set of subjects comes down to comparison of dependent reliability or reproducibility parameters...
  21. doi request reprint Confidence interval construction for a difference between two dependent intraclass correlation coefficients
    Chinthanie F Ramasundarahettige
    Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont, Canada N6A 5C1
    Stat Med 28:1041-53. 2009
    ..Simulation results show that this method performs very well in terms of overall coverage percentage and tail errors. Two data sets are used to illustrate this procedure...
  22. ncbi request reprint The merits of testing Hardy-Weinberg equilibrium in the analysis of unmatched case-control data: a cautionary note
    Guang Yong Zou
    Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
    Ann Hum Genet 70:923-33. 2006
    ..Examples from previous reports are used to illustrate the methodology...
  23. ncbi request reprint Theophylline for irreversible chronic airflow limitation: a randomized study comparing n of 1 trials to standard practice
    J L Mahon
    Department of Medicine, University of Western Ontario, Canada
    Chest 115:38-48. 1999
    ....
  24. ncbi request reprint Methods for the statistical analysis of binary data in split-mouth designs with baseline measurements
    A Donner
    Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont, Canada
    Stat Med 26:3476-86. 2007
    ..The advantages and disadvantages of the different approaches are discussed in the context of an example from the published literature. The results from a limited simulation study are also presented...
  25. ncbi request reprint The impact of patient-centered care on outcomes
    M Stewart
    Centre for Studies in Family Medicine, The University of Western Ontario, London, Canada
    J Fam Pract 49:796-804. 2000
    ..We designed this observational cohort study to assess the association between patient-centered communication in primary care visits and subsequent health and medical care utilization...
  26. ncbi request reprint A simple alternative confidence interval for the difference between two proportions
    Guangyong Zou
    Robarts Clinical Trials, Robarts Research Institute, London, Ontario, Canada N6A 5K8
    Control Clin Trials 25:3-12. 2004
    ..The results of an exact evaluation study show that this new procedure performs as well as Newcombe's procedure in terms of percent coverage and expected confidence interval width. Several examples are presented...
  27. doi request reprint Bivariate modeling of interobserver agreement coefficients
    Mohamed M Shoukri
    Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
    Stat Med 28:430-40. 2009
    ..In this paper, we develop the required methodology and provide an illustrative example...
  28. doi request reprint A school-based program to prevent adolescent dating violence: a cluster randomized trial
    David A Wolfe
    CAMH Centre for Prevention Science, 100 Collip Cir, Ste 100, London, ON N6G 4X8, Canada
    Arch Pediatr Adolesc Med 163:692-9. 2009
    ..To determine whether an interactive curriculum that integrates dating violence prevention with lessons on healthy relationships, sexual health, and substance use reduces physical dating violence (PDV)...
  29. doi request reprint Intracluster correlation coefficients from the 2005 WHO Global Survey on Maternal and Perinatal Health: implications for implementation research
    Monica Taljaard
    Ottawa Health Research Institute and University of Ottawa, Ottawa, Ontario, Canada
    Paediatr Perinat Epidemiol 22:117-25. 2008
    ..We demonstrate that ICCs generally tend to increase with higher prevalences (close to 0.5). These results can help researchers calculate the required sample size for future research studies in maternal and perinatal health...
  30. ncbi request reprint Accounting for expected attrition in the planning of community intervention trials
    Monica Taljaard
    Ottawa Health Research Institute, Clinical Epidemiology Program, The Ottawa Hospital, Ottawa, Canada
    Stat Med 26:2615-28. 2007
    ..To aid in the planning of future trials, we recommend that estimates for tau be reported in published community intervention trials...
  31. ncbi request reprint Meta-analyses of cluster randomization trials. Power considerations
    Allan Donner
    University of Western Ontario
    Eval Health Prof 26:340-51. 2003
    ..In this article, the authors present an approach that may be used to estimate the power of a planned meta-analysis that includes trials that are cluster randomized. Two examples are presented...
  32. ncbi request reprint The contribution of attachment security and social support to depressive symptoms in patients with metastatic cancer
    Gary Rodin
    Department of Psychosocial Oncology and Palliative Care, Princess Margaret Hospital, and Psychosocial Oncology and Palliative Care Research Division, Ontario Cancer Institute, University Health Network, Toronto, Canada
    Psychooncology 16:1080-91. 2007
    ....
  33. doi request reprint Early combined immunosuppression or conventional management in patients with newly diagnosed Crohn's disease: an open randomised trial
    Geert D'Haens
    Imelda Gastrointestinal Clinical Research Centre, Bonheiden, Belgium
    Lancet 371:660-7. 2008
    ..We aimed to compare the effectiveness of early use of combined immunosuppression with conventional management in patients with active Crohn's disease who had not previously received glucocorticoids, antimetabolites, or infliximab...
  34. ncbi request reprint The feasibility of a school-based VI polysaccharide vaccine mass immunization campaign in Hue City, central Vietnam: streamlining a typhoid fever preventive strategy
    Vu Dinh Thiem
    National Institute of Hygiene and Epidemiology, Hanoi, People s Republic of Vietnam
    Southeast Asian J Trop Med Public Health 37:515-22. 2006
    ..The lessons learned, together with cost-effectiveness results to be obtained by the end of follow-up period, will hopefully accelerate the introduction of Vi typhoid fever vaccine in Vietnam...
  35. ncbi request reprint Caesarean delivery rates and pregnancy outcomes: the 2005 WHO global survey on maternal and perinatal health in Latin America
    Jose Villar
    UNDP UNFPA WHO World Bank Special Programme of Research, Development and Research Training in Human Reproduction, Department of Reproductive Health and Research, WHO, 1211 Geneva 27, Switzerland
    Lancet 367:1819-29. 2006
    ..Our aim was to assess the association between caesarean delivery and pregnancy outcome at the institutional level, adjusting for the pregnant population and institutional characteristics...
  36. ncbi request reprint A multi-country cluster randomized controlled effectiveness evaluation to accelerate the introduction of Vi polysaccharide typhoid vaccine in developing countries in Asia: rationale and design
    Camilo J Acosta
    International Vaccine Institute, Seoul, South Korea
    Trop Med Int Health 10:1219-28. 2005
    ..Preliminary results are presented that determined the final planning of the trial before immunization. Important methodological and practical issues regarding vaccine cluster randomized designs are illustrated...
  37. ncbi request reprint Application of an adjusted chi2 statistic to site-specific data in observational dental studies
    Chul Ahn
    Clinical Epidemiology, University of Texas Medical School, Houston, Texas 77030, USA
    J Clin Periodontol 29:79-82. 2002
    ..However, the required assumptions for this statistic have not yet been thoroughly addressed. These assumptions are guaranteed to hold in experimental comparisons, but may be violated in some observational studies...
  38. ncbi request reprint Comment on 'Medication use and risk of falls' by Neutel et al
    Allan Donner
    Pharmacoepidemiol Drug Saf 11:95-6. 2002