David R Gagnon

Summary

Affiliation: Boston University
Country: USA

Publications

  1. ncbi Evaluation of exposure-specific risks from two independent samples: a simulation study
    William M Reichmann
    Department of Orthopedic Surgery, Brigham and Women s Hospital, 75 Francis Street, Boston, MA 02115, USA
    BMC Med Res Methodol 11:1. 2011
  2. ncbi The analysis of survival data with a non-susceptible fraction and dual censoring mechanisms
    David R Gagnon
    Boston University School of Public Health, Boston 02118, U S A
    Stat Med 22:3249-62. 2003
  3. ncbi Poisson regression for modeling count and frequency outcomes in trauma research
    David R Gagnon
    Boston University School of Public Health, and Massachusetts Veterans Epidemiology Research, and Information Center, VA Boston Healthcare System, Boston, MA 02130, USA
    J Trauma Stress 21:448-54. 2008
  4. ncbi Risk factors for chest illness in chronic spinal cord injury: a prospective study
    Kelly L Stolzmann
    Department of Veterans Affairs, VA Boston Healthcare System, Boston, Massachusetts, USA
    Am J Phys Med Rehabil 89:576-83. 2010
  5. ncbi Determinants of lung volumes in chronic spinal cord injury
    Evan L Stepp
    Research and Development Service, Department of Veterans Affairs, VA Boston Healthcare System, West Roxbury, MA 02132, USA
    Arch Phys Med Rehabil 89:1499-506. 2008
  6. ncbi Dual energy x-ray absorptiometry of the distal femur may be more reliable than the proximal tibia in spinal cord injury
    Leslie R Morse
    Department of Physical Medicine and Rehabilitation, Harvard Medical School, The Forsyth Institute, Boston, Massachusetts 02118, USA
    Arch Phys Med Rehabil 90:827-31. 2009
  7. ncbi Association between mobility mode and C-reactive protein levels in men with chronic spinal cord injury
    Leslie R Morse
    Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA 02114, USA
    Arch Phys Med Rehabil 89:726-31. 2008
  8. ncbi Systemic inflammation and reduced pulmonary function in chronic spinal cord injury
    Eric Garshick
    Pulmonary and Critical Care Medicine Section, Medical Service, VA Boston Healthcare System, 1400 VFW Parkway, West Roxbury, MA 02132, USA
    PM R 3:433-9. 2011
  9. ncbi Initiation of anaemia management in patients with chronic kidney disease not on dialysis in the Veterans Health Administration
    Elizabeth V Lawler
    Massachusetts Veterans Epidemiology Research and Information Center MAVERIC, VA Cooperative Studies Program, VA Boston Healthcare System, Boston, MA, USA
    Nephrol Dial Transplant 25:2237-44. 2010
  10. ncbi Cross-calibration and comparison of variability in 2 bone densitometers in a research setting: the framingham experience
    David R Gagnon
    Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
    J Clin Densitom 13:210-8. 2010

Detail Information

Publications31

  1. ncbi Evaluation of exposure-specific risks from two independent samples: a simulation study
    William M Reichmann
    Department of Orthopedic Surgery, Brigham and Women s Hospital, 75 Francis Street, Boston, MA 02115, USA
    BMC Med Res Methodol 11:1. 2011
    ..The goal of our study was to evaluate the existing methodology for calculating the ESR, propose an improved point estimator, and propose variance estimates that will allow the calculation of confidence intervals (CIs)...
  2. ncbi The analysis of survival data with a non-susceptible fraction and dual censoring mechanisms
    David R Gagnon
    Boston University School of Public Health, Boston 02118, U S A
    Stat Med 22:3249-62. 2003
    ..An example employing Huntington's disease data is presented...
  3. ncbi Poisson regression for modeling count and frequency outcomes in trauma research
    David R Gagnon
    Boston University School of Public Health, and Massachusetts Veterans Epidemiology Research, and Information Center, VA Boston Healthcare System, Boston, MA 02130, USA
    J Trauma Stress 21:448-54. 2008
    ..Results of Poisson regression and linear regression models are compared...
  4. ncbi Risk factors for chest illness in chronic spinal cord injury: a prospective study
    Kelly L Stolzmann
    Department of Veterans Affairs, VA Boston Healthcare System, Boston, Massachusetts, USA
    Am J Phys Med Rehabil 89:576-83. 2010
    ..Chest illnesses commonly cause morbidity in persons with chronic spinal cord injury. Risk factors remain poorly characterized because previous studies have not accounted for factors other than spinal cord injury...
  5. ncbi Determinants of lung volumes in chronic spinal cord injury
    Evan L Stepp
    Research and Development Service, Department of Veterans Affairs, VA Boston Healthcare System, West Roxbury, MA 02132, USA
    Arch Phys Med Rehabil 89:1499-506. 2008
    ..To characterize determinants of lung volumes in chronic spinal cord injury (SCI)...
  6. ncbi Dual energy x-ray absorptiometry of the distal femur may be more reliable than the proximal tibia in spinal cord injury
    Leslie R Morse
    Department of Physical Medicine and Rehabilitation, Harvard Medical School, The Forsyth Institute, Boston, Massachusetts 02118, USA
    Arch Phys Med Rehabil 90:827-31. 2009
    ..To evaluate the precision of dual energy x-ray absorptiometry scanning at 2 skeletal sites at the knee (proximal femur and distal tibia) in people with SCI...
  7. ncbi Association between mobility mode and C-reactive protein levels in men with chronic spinal cord injury
    Leslie R Morse
    Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA 02114, USA
    Arch Phys Med Rehabil 89:726-31. 2008
    ..To assess clinical determinants of systemic inflammation in persons with chronic spinal cord injury (SCI)...
  8. ncbi Systemic inflammation and reduced pulmonary function in chronic spinal cord injury
    Eric Garshick
    Pulmonary and Critical Care Medicine Section, Medical Service, VA Boston Healthcare System, 1400 VFW Parkway, West Roxbury, MA 02132, USA
    PM R 3:433-9. 2011
    ..To evaluate the relationship between systemic inflammation and pulmonary function in persons with chronic spinal cord injury (SCI)...
  9. ncbi Initiation of anaemia management in patients with chronic kidney disease not on dialysis in the Veterans Health Administration
    Elizabeth V Lawler
    Massachusetts Veterans Epidemiology Research and Information Center MAVERIC, VA Cooperative Studies Program, VA Boston Healthcare System, Boston, MA, USA
    Nephrol Dial Transplant 25:2237-44. 2010
    ....
  10. ncbi Cross-calibration and comparison of variability in 2 bone densitometers in a research setting: the framingham experience
    David R Gagnon
    Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
    J Clin Densitom 13:210-8. 2010
    ....
  11. ncbi Risk of community-acquired pneumonia in veteran patients to whom proton pump inhibitors were dispensed
    John A Hermos
    Pharmaco epidemiology Group, Massachusetts Veterans Epidemiology Research and Information Center, VA Cooperative Studies Program, VA Boston Healthcare System, Boston, Massachusetts 02130, USA
    Clin Infect Dis 54:33-42. 2012
    ..Accordingly, we studied PPI exposure and CAP in veteran patients, using a retrospective, nested case-control design...
  12. ncbi Thrombocytopenia and bleeding in veterans with non-hepatitis C-related chronic liver disease
    John A Hermos
    VA Cooperative Studies Program, Massachusetts Veterans Epidemiologic Research and Information Center MAVERIC, VA Boston Healthcare System 151MAV, 150 S Huntington Ave, Boston, MA 02130, USA
    Dig Dis Sci 58:562-73. 2013
    ..Thrombocytopenia in chronic liver disease (CLD) typically reflects disease severity and may indicate an increased risk for bleeding...
  13. ncbi Association between sclerostin and bone density in chronic spinal cord injury
    Leslie R Morse
    Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, USA
    J Bone Miner Res 27:352-9. 2012
    ....
  14. ncbi A comparison of statistical approaches for physician-randomized trials with survival outcomes
    Margaret R Stedman
    Orthopedics and Arthritis Center for Outcomes Research, Department of Orthopedics, Brigham and Women s Hospital, Boston, MA 02115, USA
    Contemp Clin Trials 33:104-15. 2012
    ..The marginal proportional hazards method performed well even when model assumptions were violated. Nonlinear mixed models were only advantageous when the distribution was correctly specified...
  15. ncbi Predictors of cardiopulmonary hospitalization in chronic spinal cord injury
    Anthony C Waddimba
    Research and Development Service, VA Boston Healthcare System, Boston, MA
    Arch Phys Med Rehabil 90:193-200. 2009
    ..Circulatory and respiratory system illnesses are leading causes of death in patients with chronic SCI, yet risk factors for related hospitalizations have not been characterized...
  16. ncbi Characterizations of long-term anxiolytic benzodiazepine prescriptions in veteran patients
    John A Hermos
    Pharmacoepidemiology Research Group Massachusetts Veterans Epidemiology Research and Information Center, VA Boston Healthcare System, Boston, MA 02130, USA
    J Clin Psychopharmacol 25:600-4. 2005
    ....
  17. ncbi Transfusion burden among patients with chronic kidney disease and anemia
    Elizabeth V Lawler
    Veterans Administration Boston Healthcare System, 150 S Huntington Avenue 151MAV, Boston, MA 02130
    Clin J Am Soc Nephrol 5:667-72. 2010
    ....
  18. ncbi A SAS macro for a clustered permutation test
    Margaret R Stedman
    Department of Biostatistics, Boston University School of Public Health, Boston, MA, United States
    Comput Methods Programs Biomed 95:89-94. 2009
    ..We describe a flexible and efficient SAS macro that implements the 2-sample clustered permutation test. We discuss the theory and applications behind this test as well as details of the SAS code...
  19. ncbi Longitudinal risk factors for intimate partner violence among men in treatment for alcohol use disorders
    Casey T Taft
    National Center for PTSD, VA Boston Healthcare System, and Department of Psychiatry, Boston University School of Medicine, Boston, MA 02130, USA
    J Consult Clin Psychol 78:924-35. 2010
    ..This study examined static and time-varying risk factors for perpetration of intimate partner violence (IPV) among men in treatment for alcohol use disorders...
  20. ncbi Foot pain: is current or past shoewear a factor?
    Alyssa B Dufour
    Boston University School of Public Health and the Institute for Aging Research, Hebrew SeniorLife, Boston, Massachusetts 02131, USA
    Arthritis Rheum 61:1352-8. 2009
    ..In this cross-sectional study of men and women from the population-based Framingham Study, the association between foot pain and type of shoewear was examined...
  21. ncbi Patterns of dispensed disulfiram and naltrexone for alcoholism treatment in a veteran patient population
    John A Hermos
    Pharmacoepidemiology Research Project, Massachusetts Veterans Epidemiology Research and Information Center MAVERIC, Veterans Affairs Boston Healthcare System, Boston, Massachusetts 02130, USA
    Alcohol Clin Exp Res 28:1229-35. 2004
    ..To assess whether these agents are being prescribed for extended periods, as an indicator of long-term use in nonexperimental settings, we compared dispensing patterns in a veteran patient population...
  22. ncbi Health care utilization and receipt of cholesterol testing by veterans with and those without mental illness
    Rebekah A Kaplowitz
    Massachusetts Veterans Epidemiology Research and Information Center MAVERIC, Veterans Affairs Boston Healthcare System, Boston, MA, USA
    Gen Hosp Psychiatry 28:137-44. 2006
    ..We examined the relationship between mental illness, health care utilization and rates of cholesterol testing...
  23. ncbi Association of elevated alanine aminotransferase with BMI and diabetes in older veteran outpatients
    John A Hermos
    Massachusetts Veterans Epidemiology Research and Information Center MAVERIC, VA Cooperative Studies Program, Veterans Affairs Boston Healthcare System, 150 S Huntington Avenue, Boston, MA 02130, USA
    Diabetes Res Clin Pract 80:153-8. 2008
    ..We determined age-stratified associations of elevated alanine aminotransferase (ALAT), as a likely indicator of non-alcoholic steatonecrosis (NASH), with body mass index (BMI) and diabetes among older male, veteran outpatients...
  24. ncbi Modeling the effects of genetic factors on late-onset diseases in cohort studies
    Mark E Glickman
    Department of Mathematics and Statistics, Boston University, Boston, MA, USA
    Lifetime Data Anal 8:211-28. 2002
    ..The model is applied to data gathered in the Framingham Heart Study for measuring the effect of different Apo-E genotypes on the occurrence of various cardiovascular disease events...
  25. ncbi Longitudinal change in FEV1 and FVC in chronic spinal cord injury
    Kelly L Stolzmann
    VA Boston Healthcare System, Pulmonary and Critical Care Medicine Section, 1400 VFW Parkway, West Roxbury, MA 02132, USA
    Am J Respir Crit Care Med 177:781-6. 2008
    ..Although respiratory dysfunction is common in chronic spinal cord injury (SCI), determinants of longitudinal change in FEV(1) and FVC have not been assessed...
  26. ncbi An evaluation of statistical approaches for analyzing physician-randomized quality improvement interventions
    Margaret R Stedman
    Boston University School of Public Health, Department of Biostatistics, Boston, MA, USA
    Contemp Clin Trials 29:687-95. 2008
    ..PQL yielded biased results. The permutation test preserved Type I error rates, but had less power than the other methods considered...
  27. ncbi Vitamin K intake and bone mineral density in women and men
    Sarah L Booth
    Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, MA 02111, USA
    Am J Clin Nutr 77:512-6. 2003
    ..Low dietary vitamin K intake has been associated with an increased risk of hip fracture in men and women. Few data exist on the association between dietary vitamin K intake and bone mineral density (BMD)...
  28. ncbi Impact of misspecifying the distribution of a prognostic factor on power and sample size for testing treatment interactions in clinical trials
    William M Reichmann
    Department of Orthopedic Surgery, Brigham and Women s Hospital, Boston, MA, USA
    BMC Med Res Methodol 13:21. 2013
    ....
  29. ncbi Matrix Gla protein is associated with risk factors for atherosclerosis but not with coronary artery calcification
    Christopher J O'Donnell
    Framingham Heart Study, 73 Mt Wayte Ave, Suite 2, Framingham, MA 01702, USA
    Arterioscler Thromb Vasc Biol 26:2769-74. 2006
    ..Matrix Gla protein (MGP) is an inhibitor of calcification in vivo. However, little is known regarding the distribution of circulating MGP and its associations with CHD risk factors or with CAC in humans...
  30. ncbi Characterizations of long-term oxycodone/acetaminophen prescriptions in veteran patients
    John A Hermos
    The Pharmacoepidemiology Research Group, Massachusetts Veterans Epidemiology Research and Information Center, Veterans Affairs Boston Healthcare System, Boston 02130, USA
    Arch Intern Med 164:2361-6. 2004
    ..To determine clinical contexts in which stability or problems may occur, we examined the pharmacologic and clinical correlates of long-term prescriptions of oxycodone/acetaminophen, a commonly prescribed short-acting opioid formulation...
  31. ncbi Three complementary definitions of polypharmacy: methods, application and comparison of findings in a large prescription database
    Benjamin G Fincke
    Department of Veterans Affairs, Center for Health Quality, Outcomes and Economic Research CHQOER, Bedford, MA 01730, USA
    Pharmacoepidemiol Drug Saf 14:121-8. 2005
    ..To develop and compare three operational definitions of polypharmacy using a large prescription database...