Michael L Johnson

Summary

Affiliation: University of Houston
Country: USA

Publications

  1. doi request reprint Antihypertensive drug use and the risk of dementia in patients with diabetes mellitus
    Michael L Johnson
    Department of Clinical Sciences and Administration, Division of Pharmacy Administration and Public Health, University of Houston, College of Pharmacy, TX, USA
    Alzheimers Dement 8:437-44. 2012
  2. doi request reprint Comparative effectiveness research: guidelines for good practices are just the beginning
    Michael L Johnson
    University of Houston, College of Pharmacy, 1441 Moursund Street, Houston, TX 77030, USA
    Expert Rev Pharmacoecon Outcomes Res 11:51-7. 2011
  3. doi request reprint The association of Medicare drug coverage with use of evidence-based medications in the Veterans Health Administration
    Michael L Johnson
    College of Pharmacy, Department of Clinical Sciences and Administration, University of Houston, Houston, TX, USA
    Ann Pharmacother 43:1565-75. 2009
  4. doi request reprint Good research practices for comparative effectiveness research: analytic methods to improve causal inference from nonrandomized studies of treatment effects using secondary data sources: the ISPOR Good Research Practices for Retrospective Database Analysi
    Michael L Johnson
    College of Pharmacy, Department of Clinical Sciences and Administration, University of Houston, Houston, TX 77030, USA
    Value Health 12:1062-73. 2009
  5. ncbi request reprint Mortality after noncardiac surgery: prediction from administrative versus clinical data
    Howard S Gordon
    Houston Center for Quality of Care and Utilization Studies, the Michael E DeBakey Veterans Affairs Medical Center, Houston, Texas 77030, USA
    Med Care 43:159-67. 2005
  6. ncbi request reprint Performance of endovascular aortic aneurysm repair in high-risk patients: results from the Veterans Affairs National Surgical Quality Improvement Program
    Ruth L Bush
    Michael E DeBakey Department of Surgery, Baylor College of Medicine, The University of Houston, College of Pharmacy, Houston, TX 77030, USA
    J Vasc Surg 45:227-233; discussion 233-5. 2007
  7. doi request reprint Comparative risk of cerebrovascular adverse events in community-dwelling older adults using risperidone, olanzapine and quetiapine: a multiple propensity score-adjusted retrospective cohort study
    Satabdi Chatterjee
    Department of Clinical Sciences and Administration, College of Pharmacy, Texas Medical Center, University of Houston, Houston, TX 77030, USA
    Drugs Aging 29:807-17. 2012
  8. doi request reprint Risk factors for dementia in patients over 65 with diabetes
    Niraj M Parikh
    College of Pharmacy, University of Houston, TX, USA
    Int J Geriatr Psychiatry 26:749-57. 2011
  9. doi request reprint Risk of cerebrovascular adverse events in older adults using antipsychotic agents: a propensity-matched retrospective cohort study
    Sandhya Mehta
    Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, Texas Medical Center, Houston 77030 3407, USA
    J Clin Psychiatry 71:689-98. 2010
  10. ncbi request reprint VHA pharmacy use in veterans with Medicare drug coverage
    Robert O Morgan
    Division of Management, Policy, and Community Health, University of Texas School of Public Health, Houston, TX, USA
    Am J Manag Care 15:e1-8. 2009

Detail Information

Publications30

  1. doi request reprint Antihypertensive drug use and the risk of dementia in patients with diabetes mellitus
    Michael L Johnson
    Department of Clinical Sciences and Administration, Division of Pharmacy Administration and Public Health, University of Houston, College of Pharmacy, TX, USA
    Alzheimers Dement 8:437-44. 2012
    ..Diabetes and hypertension are independent risk factors for dementia, and hypertension may increase this risk in patients with diabetes. It is unclear whether antihypertensive drugs are associated with risk of dementia in these patients...
  2. doi request reprint Comparative effectiveness research: guidelines for good practices are just the beginning
    Michael L Johnson
    University of Houston, College of Pharmacy, 1441 Moursund Street, Houston, TX 77030, USA
    Expert Rev Pharmacoecon Outcomes Res 11:51-7. 2011
    ....
  3. doi request reprint The association of Medicare drug coverage with use of evidence-based medications in the Veterans Health Administration
    Michael L Johnson
    College of Pharmacy, Department of Clinical Sciences and Administration, University of Houston, Houston, TX, USA
    Ann Pharmacother 43:1565-75. 2009
    ..Veterans with Medicare managed-care plans have access to pharmacy benefits outside the Veterans Health Administration (VA), but how this coverage affects use of medications for specific disease conditions within the VA is unclear...
  4. doi request reprint Good research practices for comparative effectiveness research: analytic methods to improve causal inference from nonrandomized studies of treatment effects using secondary data sources: the ISPOR Good Research Practices for Retrospective Database Analysi
    Michael L Johnson
    College of Pharmacy, Department of Clinical Sciences and Administration, University of Houston, Houston, TX 77030, USA
    Value Health 12:1062-73. 2009
    ..A Task Force was formed to offer a review of the more recent developments in statistical control of confounding...
  5. ncbi request reprint Mortality after noncardiac surgery: prediction from administrative versus clinical data
    Howard S Gordon
    Houston Center for Quality of Care and Utilization Studies, the Michael E DeBakey Veterans Affairs Medical Center, Houston, Texas 77030, USA
    Med Care 43:159-67. 2005
    ..Hospital profiles are increasingly constructed using risk-adjusted clinical data abstracted from patient records...
  6. ncbi request reprint Performance of endovascular aortic aneurysm repair in high-risk patients: results from the Veterans Affairs National Surgical Quality Improvement Program
    Ruth L Bush
    Michael E DeBakey Department of Surgery, Baylor College of Medicine, The University of Houston, College of Pharmacy, Houston, TX 77030, USA
    J Vasc Surg 45:227-233; discussion 233-5. 2007
    ..The purpose of our study was to evaluate outcomes after elective EVAR performed in high-risk veterans...
  7. doi request reprint Comparative risk of cerebrovascular adverse events in community-dwelling older adults using risperidone, olanzapine and quetiapine: a multiple propensity score-adjusted retrospective cohort study
    Satabdi Chatterjee
    Department of Clinical Sciences and Administration, College of Pharmacy, Texas Medical Center, University of Houston, Houston, TX 77030, USA
    Drugs Aging 29:807-17. 2012
    ..However, limited evidence exists regarding comparative cerebrovascular profiles of individual atypical agents, particularly in community settings...
  8. doi request reprint Risk factors for dementia in patients over 65 with diabetes
    Niraj M Parikh
    College of Pharmacy, University of Houston, TX, USA
    Int J Geriatr Psychiatry 26:749-57. 2011
    ..This study identified factors in patients with diabetes associated with risk of developing dementia...
  9. doi request reprint Risk of cerebrovascular adverse events in older adults using antipsychotic agents: a propensity-matched retrospective cohort study
    Sandhya Mehta
    Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, Texas Medical Center, Houston 77030 3407, USA
    J Clin Psychiatry 71:689-98. 2010
    ..To compare the risk of cerebrovascular adverse events with second-generation antipsychotic users versus those taking first-generation antipsychotics in community-dwelling older adults...
  10. ncbi request reprint VHA pharmacy use in veterans with Medicare drug coverage
    Robert O Morgan
    Division of Management, Policy, and Community Health, University of Texas School of Public Health, Houston, TX, USA
    Am J Manag Care 15:e1-8. 2009
    ..To determine how Medicare benefits affect veterans' use of Veterans Health Administration (VHA) pharmacy services...
  11. ncbi request reprint Propensity score analysis in observational studies: outcomes after abdominal aortic aneurysm repair
    Michael L Johnson
    Houston Center for Quality of Care and Utilization Studies, and Michael E DeBakey Veterans Affairs Medical Center, Baylor College of Medicine, Houston VAMC, 2002 Holcomb Blvd 112, Houston, TX 77030, USA
    Am J Surg 192:336-43. 2006
    ....
  12. doi request reprint Hospitalization risk associated with typical and atypical antipsychotic use in community-dwelling elderly patients
    Rajender R Aparasu
    Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, Texas Medical Center, Houston, Texas 77030, USA
    Am J Geriatr Pharmacother 6:198-204. 2008
    ..However, few studies have examined the impact of typical and atypical antipsychotic use on all-cause hospitalization in the elderly population...
  13. ncbi request reprint Therapeutic goal attainment in patients with hypertension and dyslipidemia
    Michael L Johnson
    Houston Center for Quality of Care and Utilization Studies, Michael E DeBakey Veterans Affairs Medical Center and Department of Medicine, Section of Health Services Research, Baylor College of Medicine, Houston, Texas 77030, USA
    Med Care 44:39-46. 2006
    ..We sought to ascertain treatment patterns and attainment of therapeutic goals in patients with isolated and concomitant hypertension and dyslipidemia, both with and without diabetes mellitus (DM) and symptomatic cardiovascular disease...
  14. doi request reprint Application of the nonlinear Blinder-Oaxaca decomposition to study racial/ethnic disparities in antiobesity medication use in the United States
    Hemalkumar B Mehta
    Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, 1441 Moursund St, Houston, TX 77030, USA
    Res Social Adm Pharm 9:13-26. 2013
    ..The present study demonstrates the use of this method for categorical variables by addressing antiobesity medication use disparity...
  15. doi request reprint Risk of falls and fractures in older adults using atypical antipsychotic agents: a propensity score-adjusted, retrospective cohort study
    Satabdi Chatterjee
    Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, Texas Medical Center, Houston, Texas, USA
    Am J Geriatr Pharmacother 10:83-94. 2012
    ..However, none of the studies assessed the comparative safety profiles of atypical agents with respect to falls and fractures...
  16. doi request reprint Risk of falls and fractures in older adults using antipsychotic agents: a propensity-matched retrospective cohort study
    Sandhya Mehta
    Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, Texas Medical Center, Houston, Texas 77030 3407, USA
    Drugs Aging 27:815-29. 2010
    ..Very few studies have compared the risk of falls and fractures among older adults using typical and atypical agents and none of the studies have evaluated differential risk across antipsychotic classes...
  17. ncbi request reprint Open versus endovascular abdominal aortic aneurysm repair in VA hospitals
    Ruth L Bush
    Houston Center for Quality of Care and Utilization Studies, Michael E DeBakey Veterans Affairs Medical Center, and Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
    J Am Coll Surg 202:577-87. 2006
    ..We performed a retrospective cohort study with prospectively collected data from the Department of Veterans Affairs to examine outcomes after elective aneurysm repair...
  18. ncbi request reprint Prevalence of comorbid hypertension and dyslipidemia and associated cardiovascular disease
    Michael L Johnson
    Houston Center for Quality of Care and Utilization Studies, Michael E DeBakey VA Medical Center, Houston, Tex 77030, USA
    Am J Manag Care 10:926-32. 2004
    ....
  19. doi request reprint Effect of certain angiotensin-converting enzyme inhibitors on mortality in heart failure: a multiple-propensity analysis
    Abhishek S Chitnis
    Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, 1441 Moursund St, Houston, TX, USA
    Res Social Adm Pharm 8:145-56. 2012
    ..There is a substantial evidence about efficacy of angiotensin-converting enzyme inhibitors (ACEIs) in heart failure (HF); however, there is no conclusive evidence on the relative effectiveness of individual ACEIs...
  20. pmc Burden of COPD in a government health care system: a retrospective observational study using data from the US Veterans Affairs population
    Amir Sharafkhaneh
    Baylor College of Medicine, Houston, TX, USA
    Int J Chron Obstruct Pulmon Dis 5:125-32. 2010
    ..Health care utilization and costs among US veterans with chronic obstructive pulmonary disease (COPD) were compared with those in veterans without COPD...
  21. ncbi request reprint Mortality after cardiac bypass surgery: prediction from administrative versus clinical data
    Jane M Geraci
    Houston Center for Quality of Care and Utilization Studies, Houston Veterans Affairs Medical Center, and the Section of Health Services Research, Department of Medicine, Baylor College of Medicine, Houston, Texas 77030, USA
    Med Care 43:149-58. 2005
    ....
  22. pmc Patterns of antihypertensive therapy among patients with diabetes
    Michael L Johnson
    Houston Center for Quality of Care and Utilization Studies, Michael E DeBakey Veterans Affairs Medical Center, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
    J Gen Intern Med 20:842-6. 2005
    ..Hypertension is extremely prevalent in patients with diabetes. Limited data exist on whether patterns of antihypertensive use in this population are consistent with evidence-based practice guidelines...
  23. ncbi request reprint Prescribing patterns of diuretics in multi-drug antihypertensive regimens
    Hardeep Singh
    VA Medical Center 111PC, 2002 Holcombe Boulevard, Houston, TX 77030, USA
    J Clin Hypertens (Greenwich) 7:81-7; quiz 88-9. 2005
    ..Though overall diuretic use seems to be increasing as compared with previous studies, there is room for improvement in the use of thiazides in multi-drug hypertension regimens...
  24. ncbi request reprint Antipsychotic utilization and expenditure trends among elderly persons
    Elda Jano
    Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, Texas Medical Center, 1441 Moursund St, Houston, TX 77030 3407, USA
    Psychiatr Serv 58:1400. 2007
  25. ncbi request reprint Adapting the Rx-Risk-V for mortality prediction in outpatient populations
    Michael L Johnson
    Houston Center for Quality of Care and Utilization Studies, Michael E DeBakey Veterans Affairs Medical Center, Houston, TX 77030, USA
    Med Care 44:793-7. 2006
    ..We sought to operationalize, test, and validate an outpatient pharmacy-based case-mix adjuster...
  26. doi request reprint Does diabetes mellitus alter the onset and clinical course of vascular dementia?
    Santosh B Murthy
    Department of Neurology, Baylor College of Medicine, Houston, TX, USA
    Behav Neurol 23:145-51. 2010
    ..Multiple risk factors are associated with VaD, but the individual contribution of each to disease onset and progression is unclear. We examined the relationship between diabetes mellitus type 2 (DM) and the clinical variables of VaD...
  27. pmc Statins are associated with a reduced risk of hepatocellular carcinoma in a large cohort of patients with diabetes
    Hashem B El-Serag
    Section of Gastroenterology at the Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, Texas 77030, USA
    Gastroenterology 136:1601-8. 2009
    ..Given the increasing prevalence of statin use, and the increasing incidence of hepatocellular carcinoma (HCC), the potential association between statins and HCC is an important issue to examine...
  28. doi request reprint A model to predict mortality following Pseudomonas aeruginosa bacteremia
    Elizabeth B Hirsch
    University of Houston College of Pharmacy, Houston, TX 77030, USA
    Diagn Microbiol Infect Dis 72:97-102. 2012
    ..21 and 1.92, respectively. Our model was reasonable in predicting 30-day mortality in patients with P. aeruginosa bacteremia. Our results may be useful for developing strategies to reduce mortality attributed to P. aeruginosa...
  29. ncbi request reprint Process of care in Hispanic, black, and white VA beneficiaries
    Howard S Gordon
    Houston Center for Quality of Care and Utilization Studies, Section of General Medicine, Veterans Affairs Medical Center, TX, USA
    Med Care 40:824-33. 2002
    ..To examine whether process of hospital care differs among Hispanic, black, and white VA beneficiaries...
  30. ncbi request reprint Incidence and consequences of total body potassium depletion in chronic hemodialysis patients
    George M Dolson
    Renal Section, Department of Medicine, Veterans Affairs Medical Center, 2002 Holcombe Blvd, Houston, TX 77030, USA
    Front Biosci 8:a126-32. 2003
    ..METHODOLOGY AND OUTCOME MEASURE: TBK by whole-body counting of 40K, dialysis potassium losses, and patient demographic characteristics were determined. Survival was evaluated retrospectively after seven years of follow-up...