David M Murray

Summary

Affiliation: The Ohio State University
Country: USA

Publications

  1. doi request reprint Design and analysis of group-randomized trials in cancer: a review of current practices
    David M Murray
    Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, USA
    J Natl Cancer Inst 100:483-91. 2008
  2. pmc Designing studies that would address the multilayered nature of health care
    David M Murray
    Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, USA
    J Natl Cancer Inst Monogr 2010:90-6. 2010
  3. ncbi request reprint Influencing healthful food choices in school and home environments: results from the TEENS study
    Leslie A Lytle
    Division of Epidemiology, University of Minnesota, 1300 S 2nd Street, Suite 300, Minneapolis, MN 55454, USA
    Prev Med 43:8-13. 2006
  4. ncbi request reprint School-based approaches to affect adolescents' diets: results from the TEENS study
    Leslie A Lytle
    Division of Epidemiology, University of Minnesota, Minneapolis, 55454, USA
    Health Educ Behav 31:270-87. 2004
  5. pmc Intraclass correlation estimates for cancer screening outcomes: estimates and applications in the design of group-randomized cancer screening studies
    Erinn M Hade
    Center for Biostatistics, The Ohio State University, 2012 Kenny Rd, Columbus, OH 43221, USA
    J Natl Cancer Inst Monogr 2010:97-103. 2010
  6. ncbi request reprint Predicting adolescents' intake of fruits and vegetables
    Leslie A Lytle
    Division of Epidemiology, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA
    J Nutr Educ Behav 35:170-5. 2003
  7. pmc Cutoff designs for community-based intervention studies
    Michael L Pennell
    Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, OH 43210, U S A
    Stat Med 30:1865-82. 2011
  8. ncbi request reprint Sizing a trial to alter the trajectory of health behaviours: methods, parameter estimates, and their application
    David M Murray
    Division of Epidemiology, School of Public Health, The Ohio State University, B222 Starling Loving Hall, 320 West 10th Street, Columbus, OH 43210, USA
    Stat Med 26:2297-316. 2007
  9. pmc Enhancing cancer screening in primary care: rationale, design, analysis plan, and recruitment results
    David M Murray
    Biostatistics and Bioinformatics Branch, Division of Epidemiology, Statistics and Prevention Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20892, USA
    Contemp Clin Trials 34:356-63. 2013
  10. pmc Impact of patient navigation on timely cancer care: the Patient Navigation Research Program
    Karen M Freund
    Affiliations of authors Division of Cancer Prevention and Control, Department of Internal Medicine, College of Medicine, Comprehensive Cancer Center EDP, and Center for Biostatistics GSY, The Ohio State University, Columbus, OH Institute for Clinical Research and Health Policy Studies, Tufts Medical Center and Tufts University School of Medicine, Boston, MA KMF Women s Health Unit, Section of General Internal Medicine, Evans Department of Medicine, Boston Medical Center and Women s Health Interdisciplinary Research Center, Boston University School of Medicine, Boston, MA TAB Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL EC, JSD Department of Obstetrics and Gynecology, University of Texas Health Science Center, San Antonio, TX DLD Department of Family Medicine and Public Health Sciences and Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY KF Center to Reduce Cancer Health Disparities, National Cancer Institute MLH, and Biostatistics and Bioinformatics Branch, Division of Epidemiology, Statistics, and Prevention Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health DMM, Rockville, MD MLH George Washington University School of Public Health and Health Services, Washington, DC NL, PL H Lee Moffitt Cancer Center and Research Institute, Tampa, FL J HL, Faculty of Medicine and Dentistry
    J Natl Cancer Inst 106:dju115. 2014

Detail Information

Publications64

  1. doi request reprint Design and analysis of group-randomized trials in cancer: a review of current practices
    David M Murray
    Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, USA
    J Natl Cancer Inst 100:483-91. 2008
    ..Previous reviews have identified problems in the design and analysis of group-randomized trials in a number of areas. Similar problems may exist in cancer research, but there have been no comprehensive reviews...
  2. pmc Designing studies that would address the multilayered nature of health care
    David M Murray
    Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, USA
    J Natl Cancer Inst Monogr 2010:90-6. 2010
    ..Quasi-experimental designs may be used, especially when combined with recent developments in analytic methods to reduce bias in effect estimates...
  3. ncbi request reprint Influencing healthful food choices in school and home environments: results from the TEENS study
    Leslie A Lytle
    Division of Epidemiology, University of Minnesota, 1300 S 2nd Street, Suite 300, Minneapolis, MN 55454, USA
    Prev Med 43:8-13. 2006
    ..This research is part of the TEENS study, a school-based intervention study...
  4. ncbi request reprint School-based approaches to affect adolescents' diets: results from the TEENS study
    Leslie A Lytle
    Division of Epidemiology, University of Minnesota, Minneapolis, 55454, USA
    Health Educ Behav 31:270-87. 2004
    ..In addition, future work may consider the use of peer leaders, more intensive teacher training, ongoing formative assessment, and the testing of more powerful environmental change intervention strategies...
  5. pmc Intraclass correlation estimates for cancer screening outcomes: estimates and applications in the design of group-randomized cancer screening studies
    Erinn M Hade
    Center for Biostatistics, The Ohio State University, 2012 Kenny Rd, Columbus, OH 43221, USA
    J Natl Cancer Inst Monogr 2010:97-103. 2010
    ..We present crude and adjusted ICC estimates for cancer screening outcomes for various levels of aggregation (physician, clinic, and county) and provide an example of how these ICC estimates may be used in the design of a future trial...
  6. ncbi request reprint Predicting adolescents' intake of fruits and vegetables
    Leslie A Lytle
    Division of Epidemiology, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA
    J Nutr Educ Behav 35:170-5. 2003
    ..To explore potential predictors of adolescents' fruit and vegetable intake by expanding on current theory and drawing from other adolescent research...
  7. pmc Cutoff designs for community-based intervention studies
    Michael L Pennell
    Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, OH 43210, U S A
    Stat Med 30:1865-82. 2011
    ..We examine the power of these designs as a function of intraclass correlation, number of groups, and number of members per group and compare results to the traditional GRT...
  8. ncbi request reprint Sizing a trial to alter the trajectory of health behaviours: methods, parameter estimates, and their application
    David M Murray
    Division of Epidemiology, School of Public Health, The Ohio State University, B222 Starling Loving Hall, 320 West 10th Street, Columbus, OH 43210, USA
    Stat Med 26:2297-316. 2007
    ..We provide estimates for the parameters required for those calculations for a number of adolescent health behaviours. We also show how the estimates can be used to plan a future trial...
  9. pmc Enhancing cancer screening in primary care: rationale, design, analysis plan, and recruitment results
    David M Murray
    Biostatistics and Bioinformatics Branch, Division of Epidemiology, Statistics and Prevention Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20892, USA
    Contemp Clin Trials 34:356-63. 2013
    ..This experience should assist others planning group-randomized trials, whether in cancer screening or in other areas...
  10. pmc Impact of patient navigation on timely cancer care: the Patient Navigation Research Program
    Karen M Freund
    Affiliations of authors Division of Cancer Prevention and Control, Department of Internal Medicine, College of Medicine, Comprehensive Cancer Center EDP, and Center for Biostatistics GSY, The Ohio State University, Columbus, OH Institute for Clinical Research and Health Policy Studies, Tufts Medical Center and Tufts University School of Medicine, Boston, MA KMF Women s Health Unit, Section of General Internal Medicine, Evans Department of Medicine, Boston Medical Center and Women s Health Interdisciplinary Research Center, Boston University School of Medicine, Boston, MA TAB Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL EC, JSD Department of Obstetrics and Gynecology, University of Texas Health Science Center, San Antonio, TX DLD Department of Family Medicine and Public Health Sciences and Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY KF Center to Reduce Cancer Health Disparities, National Cancer Institute MLH, and Biostatistics and Bioinformatics Branch, Division of Epidemiology, Statistics, and Prevention Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health DMM, Rockville, MD MLH George Washington University School of Public Health and Health Services, Washington, DC NL, PL H Lee Moffitt Cancer Center and Research Institute, Tampa, FL J HL, Faculty of Medicine and Dentistry
    J Natl Cancer Inst 106:dju115. 2014
    ..Patient navigation is a promising intervention to address cancer disparities but requires a multisite controlled trial to assess its effectiveness...
  11. ncbi request reprint Associations between perceived family meal environment and parent intake of fruit, vegetables, and fat
    Kerri N Boutelle
    Division of Epidemiology, University of Minnesota School of Public Health, Minneapolis MN 55454, USA
    J Nutr Educ Behav 35:24-9. 2003
    ..To describe the family mealtime environment and assess associations with adult fruit, vegetable, and fat intake...
  12. ncbi request reprint School functioning and violent behavior among young adolescents: a contextual analysis
    Amanda S Birnbaum
    Division of Epidemiology, University of Minnesota, Minneapolis, MN 55454, USA
    Health Educ Res 18:389-403. 2003
    ....
  13. doi request reprint Increasing the degrees of freedom in future group randomized trials: the df * method revisited
    David M Murray
    Division of Epidemiology, Statistics, and Prevention Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20892, USA
    Eval Rev 36:430-48. 2012
    ..As we studied the spreadsheet, we discovered other minor errors. When we corrected the errors, we found that the results were substantially different and that the conclusions reported in the original article were not always appropriate...
  14. pmc The Ohio Patient Navigation Research Program: does the American Cancer Society patient navigation model improve time to resolution in patients with abnormal screening tests?
    Electra D Paskett
    Division of Cancer Prevention and Control, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43201, USA
    Cancer Epidemiol Biomarkers Prev 21:1620-8. 2012
    ..The goal of this study was to test the Ohio American Cancer Society model of PN as it relates to reducing time to diagnostic resolution among persons with abnormal breast, cervical, or colorectal cancer screening tests or symptoms...
  15. pmc Characteristics of rural Appalachian women who enroll in a tobacco dependence treatment clinical trial
    Mark B Troyer
    Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, USA
    Nicotine Tob Res 13:880-5. 2011
    ..We report a comparison of Appalachian women enrolling in a tobacco dependence treatment RCT to those declining and identify correlates to enrollment...
  16. ncbi request reprint Analysis strategies for a community trial to reduce adolescent ATOD use: a comparison of random coefficient and ANOVA/ANCOVA models
    David M Murray
    The Ohio State University, School of Public Health, B222 West 10th Avenue, Columbus, OH 43210, USA
    Contemp Clin Trials 27:188-206. 2006
    ..The two-stage pre-post mixed-model ANCOVA offers the best power for the primary outcomes and will provide adequate power for detection of modest but important intervention effects...
  17. pmc Studies with staggered starts: multiple baseline designs and group-randomized trials
    Dale A Rhoda
    Centers for Public Health Research and Evaluation, Battelle Memorial Institute, Columbus, OH 43201, USA
    Am J Public Health 101:2164-9. 2011
    ..We reviewed structural features of MBDs and considered their potential effectiveness in public health research. We also reviewed the effect of staggered starts on statistical power...
  18. pmc Efficient Bayesian joint models for group randomized trials with multiple observation times and multiple outcomes
    Xinyi Xu
    Department of Statistics, College of Math and Physical Sciences, The Ohio State University, Columbus, OH, USA
    Stat Med 31:2858-71. 2012
    ..We also demonstrate the methodology using body composition data collected in the Trial of Activity in Adolescent Girls...
  19. pmc School-level intraclass correlation for physical activity in sixth grade girls
    David M Murray
    Division of Epidemiology, School of Public Health, The Ohio State University, Columbus, 43210, USA
    Med Sci Sports Exerc 38:926-36. 2006
    ..We report the school-level intraclass correlation (ICC) for MVPA from the TAAG baseline survey of sixth grade girls and describe the relationship between the schedule of data collection and the ICC...
  20. pmc Improving colorectal cancer screening by using community volunteers: results of the Carolinas cancer education and screening (CARES) project
    Mira L Katz
    Health Behavior and Health Promotion, College of Public Health, and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, USA
    Cancer 110:1602-10. 2007
    ....
  21. pmc Obesity and depressed mood associations differ by race/ethnicity in adolescent girls
    Sarah E Anderson
    Division of Epidemiology, College of Public Health, The Ohio State University, Columbus OH
    Int J Pediatr Obes 6:69-78. 2011
    ..Our results are consistent both with depressed mood contributing to obesity and obesity contributing to depressed mood...
  22. ncbi request reprint Sample size considerations for studies of intervention efficacy in the occupational setting
    DeAnn Lazovich
    Division of Epidemiology, University of Minnesota, Minneapolis 55454, USA
    Ann Occup Hyg 46:219-27. 2002
    ..We review and apply the statistical methods for group-randomized trials in planning a study to evaluate the effectiveness of technical/behavioral interventions to reduce wood dust levels among small woodworking businesses...
  23. pmc Sympathetic and parasympathetic activity in cancer-related fatigue: more evidence for a physiological substrate in cancer survivors
    Christopher P Fagundes
    Institute for Behavioral Medicine Research, The Ohio State University College of Medicine, The Ohio State University, Columbus, OH 43210 1228, USA
    Psychoneuroendocrinology 36:1137-47. 2011
    ..Furthermore, lower HRV and elevated norepinephrine have been associated with a number of adverse health outcomes; accordingly, fatigue may also signal the need for increased vigilance to other health threats...
  24. ncbi request reprint Psychosocial correlates of physical activity and sedentary leisure habits in young adolescents: the Teens Eating for Energy and Nutrition at School study
    Kathryn H Schmitz
    Division of Epidemiology, University of Minnesota, 1300 South 2nd Street, Suite 300, Minneapolis, MN 55454 1015, USA
    Prev Med 34:266-78. 2002
    ..The purpose of this paper was to examine associations of demographic and psychosocial factors with self-reported PA and SLH in young adolescents...
  25. pmc Analytic methods for individually randomized group treatment trials and group-randomized trials when subjects belong to multiple groups
    Rebecca R Andridge
    Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, OH, 43210, U S A
    Stat Med 33:2178-90. 2014
    ..We recommend constraining variance estimates to be positive and using the Kenward-Roger adjustment for degrees of freedom; this combination provided additional power but maintained type I error rates at the nominal level...
  26. pmc Tobacco use by male prisoners under an indoor smoking ban
    Ross M Kauffman
    Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, USA
    Nicotine Tob Res 13:449-56. 2011
    ..Patterns of tobacco use among prisoners were explored to determine the impact of incarceration in a facility with an indoor smoking ban on tobacco use behaviors...
  27. ncbi request reprint Are differences in exposure to a multicomponent school-based intervention associated with varying dietary outcomes in adolescents?
    Amanda S Birnbaum
    Division of Epidemiology, University of Minnesota, Minneapolis 55454, USA
    Health Educ Behav 29:427-43. 2002
    ..Control students' choices remained stable. Future studies may investigate mechanisms for peer leaders' changes, maximizing curriculum effectiveness, and improving environmental interventions...
  28. ncbi request reprint Survey development for assessing correlates of young adolescents' eating
    Amanda S Birnbaum
    Division of Epidemiology, University of Minnesota, Minneapolis 55454 1054, USA
    Am J Health Behav 26:284-95. 2002
    ..To describe the development and psychometric testing of a survey to assess multiple influences on young adolescents' eating behaviors...
  29. pmc The SUCCESS project: the effect of program format and incentives on participation and cessation in worksite smoking cessation programs
    Deborah J Hennrikus
    Division of Epidemiology, University of Minnesota School of Public Health, Minneapolis, 55454 1054, USA
    Am J Public Health 92:274-9. 2002
    ..This study examined the effect of program format and incentives on participation and cessation in worksite smoking cessation programs...
  30. pmc Physical activities in adolescent girls: variability in energy expenditure
    Karin A Pfeiffer
    Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina 29208, USA
    Am J Prev Med 31:328-31. 2006
    ..The purpose of this study was to describe the variability in energy expenditure for selected physical activities among adolescent girls...
  31. pmc Promoting physical activity in middle school girls: Trial of Activity for Adolescent Girls
    Larry S Webber
    Department of Biostatistics, Tulane University, New Orleans, Louisiana 70112, USA
    Am J Prev Med 34:173-84. 2008
    ..Physical activity is important for weight control and good health; however, activity levels decline in the adolescent years, particularly in girls...
  32. doi request reprint Depressive symptoms and physical activity in adolescent girls
    Carolyn C Johnson
    Tulane University School of Public Health and Tropical Medicine, New Orleans, LA 70112, USA
    Med Sci Sports Exerc 40:818-26. 2008
    ..To evaluate the relationship between depressive symptoms and physical activity in a geographically and ethnically diverse sample of sixth-grade adolescent girls...
  33. pmc Individually randomized group treatment trials: a critical appraisal of frequently used design and analytic approaches
    Sherri L Pals
    Division of HIV AIDS Prevention, National Center for HIV, Viral Hepatitis, STD and TB Prevention, MS E 45, Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30333, USA
    Am J Public Health 98:1418-24. 2008
    ....
  34. ncbi request reprint Methods to reduce the impact of intraclass correlation in group-randomized trials
    David M Murray
    University of Memphis, USA
    Eval Rev 27:79-103. 2003
    ..Investigators planning GRTs should obtain ICC estimates matched to their planned analysis so that they can size their studies properly...
  35. ncbi request reprint Empirically supported treatments or type I errors? Problems with the analysis of data from group-administered treatments
    Scott A Baldwin
    Department of Psychology, University of Memphis, Memphis, TN, USA
    J Consult Clin Psychol 73:924-35. 2005
    ..Of the 33 studies, 6-19 studies no longer had any significant results after correction. The authors end by providing recommendations for researchers planning group-administered treatment research...
  36. ncbi request reprint Prevalence and correlates of depressive symptoms in young adolescents
    Martha Y Kubik
    School of Nursing, University of Minnesota, Minneapolis, MN 55455, USA
    Am J Health Behav 27:546-53. 2003
    ..To assess prevalence of elevated depressive symptoms in young adolescents and examine associations between symptoms and sociodemographic and behavioral factors...
  37. pmc Defining accelerometer thresholds for activity intensities in adolescent girls
    Margarita S Treuth
    Center for Human Nutrition, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
    Med Sci Sports Exerc 36:1259-66. 2004
    ....
  38. pmc School-level intraclass correlation for physical activity in adolescent girls
    David M Murray
    Department of Psychology, College of Arts and Sciences, University of Memphis, Memphis, TN 38152 3230, USA
    Med Sci Sports Exerc 36:876-82. 2004
    ..As a result, we conducted a substudy to estimate the school-level ICC for intensity-weighted minutes of MVPA measured using an accelerometer...
  39. ncbi request reprint Social desirability bias in self-reported dietary, physical activity and weight concerns measures in 8- to 10-year-old African-American girls: results from the Girls Health Enrichment Multisite Studies (GEMS)
    Lisa M Klesges
    Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, 38163, USA
    Prev Med 38:S78-87. 2004
    ..Social desirability (SocD) may bias children's self-reported health behaviors and attitudes and confound relationships with health outcome measures...
  40. ncbi request reprint Assessing the most powerful analysis method for school-based intervention studies with alcohol, tobacco, and other drug outcomes
    Jessica B Janega
    Department of Psychology, The University of Memphis, 202 Psychology Building, 3693 Norriswood, Memphis, TN 38152 3230, USA
    Addict Behav 29:595-606. 2004
    ..These estimates will allow other researchers using these variables to plan their studies by performing a priori power analyses for any of four common analytic options...
  41. pmc Design and analysis of group-randomized trials: a review of recent practices
    Sherri P Varnell
    NorthropGrumman Mission Systems, Atlanta, GA, USA
    Am J Public Health 94:393-9. 2004
    ..Hence increased vigilance is needed to ensure that appropriate methods for GRTs are employed and that results based on inappropriate methods are not published...
  42. ncbi request reprint The impact of the Pathways intervention on psychosocial variables related to diet and physical activity in American Indian schoolchildren
    June Stevens
    Department of Nutrition, School of Public Health, University of North Carolina, Chapel Hill, NC 27599 7400, USA
    Prev Med 37:S70-9. 2003
    ..The purpose of this study was to examine the impact of the Pathways intervention on pychosocial variables related to physical activity and diet in American Indian children...
  43. ncbi request reprint Design, implementation, and quality control in the Pathways American-Indian multicenter trial
    Elaine J Stone
    University of New Mexico, Department of Physical Performance and Development, Johnson Center Room 1150, Albuquerque, NM 87131, USA
    Prev Med 37:S13-23. 2003
    ..Pathways was the first multicenter American-Indian school-based study to test the effectiveness of an obesity prevention program promoting healthy eating and physical activity...
  44. ncbi request reprint Child- and parent-targeted interventions: the Memphis GEMS pilot study
    Bettina M Beech
    University of Memphis, Center for Community Health, Tennessee 38119, USA
    Ethn Dis 13:S40-53. 2003
    ..To assess the feasibility, acceptability, and outcomes of 2 versions of a culturally relevant, family-based intervention to prevent excess weight gain in pre-adolescent African-American girls...
  45. ncbi request reprint Intraclass correlation among measures related to cigarette use by adolescents: estimates from an urban and largely African American cohort
    David M Murray
    Department of Psychology, The University of Memphis, TN 38152 3230, USA
    Addict Behav 27:509-27. 2002
    ..We show how those correlations can be reduced using regression adjustments and used to determine sample size for future school-based smoking prevention studies...
  46. ncbi request reprint Assessing intervention effects in a school-based nutrition intervention trial: which analytic model is most powerful?
    Jessica B Janega
    Department of Psychology, University of Memphis
    Health Educ Behav 31:756-74. 2004
    ..The formulae may be applied to any dependent variable in any GRT given corresponding information for those variables on the parameters that define the formulae...
  47. ncbi request reprint Increasing the degrees of freedom in existing group randomized trials: the df* approach
    Jonathan L Blitstein
    Psychology of Health Behavior Program, RTI International
    Eval Rev 29:241-67. 2005
    ..The authors discuss the limitations of this approach and the circumstances in which it is likely to be helpful...
  48. pmc Design of the Trial of Activity in Adolescent Girls (TAAG)
    June Stevens
    University of North Carolina at Chapel Hill, USA
    Contemp Clin Trials 26:223-33. 2005
    ..The TAAG study addresses an important health behavior, and also advances the field of group-randomized trials through the use of a study design and analysis plan tailored to serve the main study hypothesis...
  49. ncbi request reprint Predictors of violent behavior in an early adolescent cohort: similarities and differences across genders
    Jonathan L Blitstein
    RTI International, Center for Health Promotion Research, Research Triangle Park, North Carolina 27709, USA
    Health Educ Behav 32:175-94. 2005
    ..Additional predictors of violent behavior specific to girls included both risk and protective factors...
  50. ncbi request reprint Increasing the degrees of freedom in future group randomized trials: the df* approach
    Jonathan L Blitstein
    Psychology of Health Behavior Program, RTI International
    Eval Rev 29:268-86. 2005
    ..The authors discuss the circumstances under which this strategy will be most helpful and the risks associated with conducting smaller studies...
  51. ncbi request reprint A comparison of permutation and mixed-model regression methods for the analysis of simulated data in the context of a group-randomized trial
    David M Murray
    Department of Psychology, The University of Memphis, TN 38152 3230, USA
    Stat Med 25:375-88. 2006
    ..Binomial group- and member-level errors did not otherwise change the relative performance of the two methods with regard to confounding...
  52. ncbi request reprint Rapid progression to regular cigarette smoking among nonsmoking adolescents: interactions with gender and ethnicity
    Jonathan L Blitstein
    Department of Psychology, The University of Memphis, Memphis, TN 38152, USA
    Prev Med 36:455-63. 2003
    ....
  53. ncbi request reprint Evaluating the Lions-Quest "Skills for Adolescence" drug education program: first-year behavior outcomes
    Marvin Eisen
    The Urban Institute, NW Washington, DC 20037, USA
    Addict Behav 27:619-32. 2002
    ..For baseline users, there were three significant SFA delays in transition to experimental or recent use of more "advanced" substances: drinking to smoking, drinking to marijuana use, and binge drinking to marijuana...
  54. ncbi request reprint Evaluating the Lions-Quest "Skills for Adolescence" drug education program. Second-year behavior outcomes
    Marvin Eisen
    The Urban Institute, 2100 M Street, Northwest, Washington, DC 20037, USA
    Addict Behav 28:883-97. 2003
    ....
  55. ncbi request reprint The reliability and predictive value of adolescents' reports of initial reactions to smoking
    Brant W Riedel
    Memphis City Schools Office of Research and Evaluation, Memphis, TN 38112, USA
    Nicotine Tob Res 5:553-9. 2003
    ..Participants who progressed from experimental to regular smoking from Time 1 to Time 2 were more likely to report relaxation as an initial reaction to smoking at Time 2 after denying relaxation at Time 1...
  56. ncbi request reprint History of sport participation in relation to obesity and related health behaviors in women
    Catherine M Alfano
    Center for Community Health, Department of Psychology, The University of Memphis, Tennessee 38119, USA
    Prev Med 34:82-9. 2002
    ..The purpose of this study was to investigate whether a history of youth sport participation was related to adult obesity, physical activity, and dietary intake among women...
  57. ncbi request reprint Advances and controversies in the design of obesity prevention trials
    June Stevens
    Department of Nutrition, CB 7461, University of North Carolina, Chapel Hill, NC 27599, USA
    Obesity (Silver Spring) 15:2163-70. 2007
    ..Attention to design issues will ultimately lead to more successful, cost-effective randomized trials, and more rapid movement toward efficacious and effective obesity prevention programs...
  58. ncbi request reprint Ethnic differences in predictors of adolescent smoking onset and escalation: a longitudinal study from 7th to 12th grade
    Leslie A Robinson
    Center for Health Promotion and Evaluation, Department of Psychology, The University of Memphis, TN 38152 3230, USA
    Nicotine Tob Res 8:297-307. 2006
    ..Overall, we found that, contrary to previous research, risk factors for smoking differed across ethnicity. Further, smoking onset appears to be shaped by forces different from those that accelerate consumption...
  59. pmc Design and analysis of group-randomized trials: a review of recent methodological developments
    David M Murray
    Department of Psychology, College of Arts and Sciences, University of Memphis, Memphis, TN, USA
    Am J Public Health 94:423-32. 2004
    ..We encourage investigators who conduct GRTs to become familiar with these developments and to collaborate with methodologists who can strengthen the design and analysis of their trials...
  60. ncbi request reprint Memphis Girls health Enrichment Multi-site Studies (GEMS): Phase 2: design and baseline
    Robert C Klesges
    Department of Preventive Medicine, University of Tennessee Center for Health Sciences and St Jude Children s Research Hospital, Memphis, TN, USA
    Contemp Clin Trials 29:42-55. 2008
    ..The GEMS obesity prevention intervention targets improved diet and increased physical activity to reduce excessive weight gain in healthy African-American girls of ages 8-10...
  61. ncbi request reprint Physical activity in relation to all-site and lung cancer incidence and mortality in current and former smokers
    Catherine M Alfano
    Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, M3 B232, Seattle, WA 98109 1024, USA
    Cancer Epidemiol Biomarkers Prev 13:2233-41. 2004
    ..Prospective studies using more sophisticated measures of physical activity assessed at multiple time points during follow-up are needed to corroborate these associations...
  62. pmc Objectively assessed associations between physical activity and body composition in middle-school girls: the Trial of Activity for Adolescent Girls
    June Stevens
    Department of Nutrition, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
    Am J Epidemiol 166:1298-305. 2007
    ..More population-based research using objective physical activity and body composition measurements is needed to make evidence-based physical activity recommendations for US youth...
  63. ncbi request reprint Sagittal plane kinematics of a mobile-bearing unicompartmental knee arthroplasty at 10 years: a comparative in vivo fluoroscopic analysis
    Andrew J Price
    Nuffield Orthopaedic Centre, Headington, Oxford, UK
    J Arthroplasty 19:590-7. 2004
    ..The results suggest that a normal pattern of sagittal plane knee kinematics exists following Oxford medial UKA and imply that anterior cruciate ligament function is maintained in the long term...
  64. pmc Imputation of missing data when measuring physical activity by accelerometry
    Diane J Catellier
    Department of Biostatistics, University of North Carolina, Chapel Hill, NC 27514 4145, USA
    Med Sci Sports Exerc 37:S555-62. 2005
    ..The fact that counts are not being recorded during periods in which the monitor is not worn means that many common estimators of daily physical activity are biased downward...