Hsien Yen Chang

Summary

Affiliation: Johns Hopkins Bloomberg School of Public Health
Country: USA

Publications

  1. pmc An in-depth assessment of a diagnosis-based risk adjustment model based on national health insurance claims: the application of the Johns Hopkins Adjusted Clinical Group case-mix system in Taiwan
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, 624 N Broadway St, Baltimore, MD 21205, USA
    BMC Med 8:7. 2010
  2. ncbi request reprint Change in claims-based diabetes medications is a diabetes improvement indicator
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, 624 N Broadway, Baltimore, MD 21205, USA
    Am J Manag Care 19:572-8. 2013
  3. ncbi request reprint Validating the adapted Diabetes Complications Severity Index in claims data
    Hsieng Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Am J Manag Care 18:721-6. 2012
  4. ncbi request reprint Predicting costs with diabetes complications severity index in claims data
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Am J Manag Care 18:213-9. 2012
  5. pmc Comparison of alternative risk adjustment measures for predictive modeling: high risk patient case finding using Taiwan's National Health Insurance claims
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, 624 N, Broadway, Baltimore, MD 21205, USA
    BMC Health Serv Res 10:343. 2010
  6. doi request reprint Morbidity trajectories as predictors of utilization: multi-year disease patterns in Taiwan's national health insurance program
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Med Care 49:918-23. 2011
  7. doi request reprint Impact of bariatric surgery on health care costs of obese persons: a 6-year follow-up of surgical and comparison cohorts using health plan data
    Jonathan P Weiner
    Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
    JAMA Surg 148:555-62. 2013
  8. doi request reprint Risk of complications after bariatric surgery among individuals with and without type 2 diabetes mellitus
    Kimberley E Steele
    Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Surg Obes Relat Dis 8:305-30. 2012
  9. pmc Impact of bariatric surgery on health care utilization and costs among patients with diabetes
    Sara N Bleich
    Department of Health Policy and Management, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
    Med Care 50:58-65. 2012
  10. ncbi request reprint Prevalence and treatment of pain in EDs in the United States, 2000 to 2010
    Hsien Yen Chang
    Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
    Am J Emerg Med 32:421-31. 2014

Detail Information

Publications17

  1. pmc An in-depth assessment of a diagnosis-based risk adjustment model based on national health insurance claims: the application of the Johns Hopkins Adjusted Clinical Group case-mix system in Taiwan
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, 624 N Broadway St, Baltimore, MD 21205, USA
    BMC Med 8:7. 2010
    ..However, research regarding risk adjustment is limited. This study aims to examine the performance of the Adjusted Clinical Group (ACG) case-mix system using claims-based diagnosis information from the Taiwanese NHI programme...
  2. ncbi request reprint Change in claims-based diabetes medications is a diabetes improvement indicator
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, 624 N Broadway, Baltimore, MD 21205, USA
    Am J Manag Care 19:572-8. 2013
    ..Because laboratory test results are less available to researchers than claims data, a claims-based indicator of diabetes improvement would be valuable...
  3. ncbi request reprint Validating the adapted Diabetes Complications Severity Index in claims data
    Hsieng Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Am J Manag Care 18:721-6. 2012
    ..To test the validity of the adapted Diabetes Complications Severity Index (aDCSI), which does not include laboratory test results, as an indicator of diabetes severity...
  4. ncbi request reprint Predicting costs with diabetes complications severity index in claims data
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Am J Manag Care 18:213-9. 2012
    ..To test the usefulness of the Diabetes Complications Severity Index (DCSI) without laboratory test results in predicting healthcare costs, for potential use in disease management programs...
  5. pmc Comparison of alternative risk adjustment measures for predictive modeling: high risk patient case finding using Taiwan's National Health Insurance claims
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, 624 N, Broadway, Baltimore, MD 21205, USA
    BMC Health Serv Res 10:343. 2010
    ....
  6. doi request reprint Morbidity trajectories as predictors of utilization: multi-year disease patterns in Taiwan's national health insurance program
    Hsien Yen Chang
    Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Med Care 49:918-23. 2011
    ..Little is known about how morbidity levels progress over time and the implications of these morbidity trajectories for healthcare utilization...
  7. doi request reprint Impact of bariatric surgery on health care costs of obese persons: a 6-year follow-up of surgical and comparison cohorts using health plan data
    Jonathan P Weiner
    Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
    JAMA Surg 148:555-62. 2013
    ..Bariatric surgery is a well-documented treatment for obesity, but there are uncertainties about the degree to which such surgery is associated with health care cost reductions that are sustained over time...
  8. doi request reprint Risk of complications after bariatric surgery among individuals with and without type 2 diabetes mellitus
    Kimberley E Steele
    Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Surg Obes Relat Dis 8:305-30. 2012
    ..However, before bariatric surgery can be recommended for the treatment of diabetes, its safety in the diabetic population must be known. We assessed the odds of complications after bariatric surgery in patients with and without diabetes...
  9. pmc Impact of bariatric surgery on health care utilization and costs among patients with diabetes
    Sara N Bleich
    Department of Health Policy and Management, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
    Med Care 50:58-65. 2012
    ..The effect of bariatric surgery on health care utilization and costs among individuals with type 2 diabetes remains unclear...
  10. ncbi request reprint Prevalence and treatment of pain in EDs in the United States, 2000 to 2010
    Hsien Yen Chang
    Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
    Am J Emerg Med 32:421-31. 2014
    ..To describe changes in the prevalence and severity of pain and prescribing of non-opioid analgesics in US emergency departments (EDs) from 2000 to 2010...
  11. doi request reprint Glucagonlike peptide 1-based therapies and risk of hospitalization for acute pancreatitis in type 2 diabetes mellitus: a population-based matched case-control study
    Sonal Singh
    Department of Medicine, The Johns Hopkins University School of Medicine and Public Health, Baltimore, MD 21287, USA
    JAMA Intern Med 173:534-9. 2013
    ....
  12. doi request reprint Development of a claims-based risk score to identify obese individuals
    Jeanne M Clark
    Division of General Internal Medicine, Department of Medicine, The Johns Hopkins University, Baltimore, Maryland, USA
    Popul Health Manag 13:201-7. 2010
    ..This model could be used for obesity care management and health promotion or for obesity-related research...
  13. pmc Screening and diagnosis of micronutrient deficiencies before and after bariatric surgery
    Kimberly A Gudzune
    Division of General Internal Medicine, Department of Medicine, The Johns Hopkins University School of Medicine, 2024 E Monument St, Room 2 611, Baltimore, MD, 21287, USA
    Obes Surg 23:1581-9. 2013
    ..Micronutrient deficiencies are key concerns after bariatric surgery. We describe the prevalence of perioperative testing and diagnosis of micronutrient deficiencies among a cohort of insured bariatric surgery patients...
  14. pmc Ambulatory diagnosis and treatment of nonmalignant pain in the United States, 2000-2010
    Matthew Daubresse
    Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health Center for Drug Safety and Effectiveness, Johns Hopkins University Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD Division of Health Care Policy and Research, Mayo Clinic, Rochester, MN Program on Prevention Outcomes and Practices, Stanford Prevention Research Center, Stanford University School of Medicine, Palo Alto, CA Stefan P Kruszewski, MD and Associates, Harrisburg, PA Department of Mental Health, Johns Hopkins Bloomberg School of Public Health Department of Medicine, Division of General Internal Medicine, Johns Hopkins Medicine, Baltimore, MD
    Med Care 51:870-8. 2013
    ..Escalating rates of prescription opioid use and abuse have occurred in the context of efforts to improve the treatment of nonmalignant pain...
  15. doi request reprint Ambulatory specialist use by nonhospitalized patients in us health plans: correlates and consequences
    Barbara Starfield
    Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21205, USA
    J Ambul Care Manage 32:216-25. 2009
    ..Controlling for differences in the degree of morbidity, receiving care from multiple specialists is associated with higher costs, more procedures, and more medications, independent of the number of visits and age of the patient...
  16. pmc Utilization of primary and obstetric care after medically complicated pregnancies: an analysis of medical claims data
    Wendy L Bennett
    Division of General Internal Medicine, The Johns Hopkins University School of Medicine, 2024 E Monument St, Suite 2 616, Baltimore, MD, 21205, USA
    J Gen Intern Med 29:636-45. 2014
    ..Because pregnancy complications, including gestational diabetes mellitus (GDM) and hypertensive disorders in pregnancy, are risk factors for diabetes and cardiovascular disease, post-delivery follow-up is recommended...
  17. doi request reprint The state of overuse measurement: a critical review
    Kitty S Chan
    1Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
    Med Care Res Rev 70:473-96. 2013
    ..Future development of overuse measures would benefit from new empirical research and clinical guidelines focused on identifying indications or populations for which there is likely to be no or low benefit...