Chung-Chou H Chang
Biographic Data
| ID | 5539128 |
|---|---|
| NAME | Chung-Chou H Chang |
| GIVEN NAMES | Chung-Chou H |
| FAMILY NAME | Chang |
| SIGNATURE | CHANG C H |
| AFFILIATIONS | University of Pittsburgh |
| ORCID | 0000-0001-8719-2508 |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 9 |
| AUTHOR COUNT | 12 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2006 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 1 |
Weighted Lottery to Equitably Allocate Scarce Supply of Covid-19 Monoclonal Antibody
The findings of this quality improvement study suggest an ADI-weighted lottery process to allocate scarce resources is feasible in a large health system and resulted in more drug allocation to and receipt of drug by individuals who reside in disadvantaged neighborhoods. Although the ADI-weighted lottery also resulted in more drug allocation to Black individuals compared with an unweighted process, they were less likely to accept allocation and re…
Associations of Total, Cognitive/Affective, and Somatic Depressive Symptoms and Antidepressant Use With Cardiovascular Disease–Relevant Biomarkers in HIV: Veterans Aging Cohort Study
OBJECTIVE: We sought to determine the associations of total, cognitive/affective, and somatic depressive symptoms and antidepressant use with biomarkers of processes implicated in cardiovascular disease in HIV (HIV-CVD). METHODS: We examined data from 1546 HIV-positive and 843 HIV-negative veterans. Depressive symptoms were assessed using the Patient Health Questionnaire-9, and past-year antidepressant use was determined from Veterans Affair phar…
Differences in Hospital Risk-standardized Mortality Rates for Acute Myocardial Infarction When Assessed Using Transferred and Nontransferred Patients
BACKGROUND: One in 5 patients with acute myocardial infarction (AMI) are transferred between hospitals. However, current hospital performance measures based on AMI mortality exclude these patients from the evaluation of referral hospitals. OBJECTIVE: To determine the relationship between risk-standardized mortality for transferred and nontransferred patients at referral hospitals. RESEARCH DESIGN: This is a retrospective cohort study. SUBJECTS: F…
An Examination of Claims-based Predictors of Overdose from a Large Medicaid Program
BACKGROUND: Health systems may play an important role in identification of patients at-risk of opioid medication overdose. However, standard measures for identifying overdose risk in administrative data do not exist. OBJECTIVE: Examine the association between opioid medication overdose and 2 validated measures of nonmedical use of prescription opioids within claims data. RESEARCH DESIGN: A longitudinal retrospective cohort study that estimated as…
Who Were the Early Adopters of Dabigatran: An Application of Group-based Trajectory Models
BACKGROUND: Variation in physician adoption of new medications is poorly understood. Traditional approaches (eg, measuring time to first prescription) may mask substantial heterogeneity in technology adoption. OBJECTIVE: Apply group-based trajectory models to examine the physician adoption of dabigratran, a novel anticoagulant. METHODS: A retrospective cohort study using prescribing data from IMS XponentTM on all Pennsylvania physicians regularly…
Gestational Weight Gain, Early Pregnancy Maternal Adiposity Distribution, and Maternal Hyperglycemia
Pre-pregnancy obesity and maternal nutritional biomarker status during pregnancy: A factor analysis
Objective Pre-pregnancy obesity has been associated with adverse birth outcomes. Poor essential fatty acid (EFA) and micronutrient status during pregnancy may contribute to these associations. We assessed the associations between pre-pregnancy BMI and nutritional patterns of maternal micronutrient and EFA status during mid-pregnancy. Design A cross-sectional analysis from a prospective cohort study. Women provided non-fasting blood samples at ≤20…
The impact of menopause on health-related quality of life: Results from the STRIDE longitudinal study
Social Network Analysis of Patient Sharing Among Hospitals in Orange County, California
Objectives. We applied social network analyses to determine how hospitals within Orange County, California, are interconnected by patient sharing, a system which may have numerous public health implications. Methods. Our analyses considered 2 general patient-sharing networks: uninterrupted patient sharing (UPS; i.e., direct interhospital transfers) and total patient sharing (TPS; i.e., all interhospital patient sharing, including patients with in…
Is Survival Better at Hospitals With Higher “End-of-Life” Treatment Intensity
BACKGROUND: Concern regarding wide variations in spending and intensive care unit use for patients at the end of life hinges on the assumption that such treatment offers little or no survival benefit. OBJECTIVE: To explore the relationship between hospital "end-of-life" (EOL) treatment intensity and postadmission survival. RESEARCH DESIGN: Retrospective cohort analysis of Pennsylvania Health Care Cost Containment Council discharge data April 2001…
Development and Validation of Hospital “End-of-Life” Treatment Intensity Measures
BACKGROUND: Health care utilization among decedents is increasingly used as a measure of health care efficiency, but decedent-based measures may be biased estimates of care received by "dying" patients. OBJECTIVE: To develop and validate new measures of hospital "end-of-life" treatment intensity. RESEARCH DESIGN: Retrospective cohort study using Pennsylvania Health Care Cost Containment Council (PHC4) discharge data (April 2001-March 2005) and Ce…
Ensuring high-quality primary care for women: Predictors of success
Social Network Analysis of Patient Sharing Among Hospitals in Orange County, California
Objectives. We applied social network analyses to determine how hospitals within Orange County, California, are interconnected by patient sharing, a system which may have numerous public health implications. Methods. Our analyses considered 2 general patient-sharing networks: uninterrupted patient sharing (UPS; i.e., direct interhospital transfers) and total patient sharing (TPS; i.e., all interhospital patient sharing, including patients with in…
Ensuring high-quality primary care for women: Predictors of success
Development and Validation of Hospital “End-of-Life” Treatment Intensity Measures
BACKGROUND: Health care utilization among decedents is increasingly used as a measure of health care efficiency, but decedent-based measures may be biased estimates of care received by "dying" patients. OBJECTIVE: To develop and validate new measures of hospital "end-of-life" treatment intensity. RESEARCH DESIGN: Retrospective cohort study using Pennsylvania Health Care Cost Containment Council (PHC4) discharge data (April 2001-March 2005) and Ce…
Is Survival Better at Hospitals With Higher “End-of-Life” Treatment Intensity
BACKGROUND: Concern regarding wide variations in spending and intensive care unit use for patients at the end of life hinges on the assumption that such treatment offers little or no survival benefit. OBJECTIVE: To explore the relationship between hospital "end-of-life" (EOL) treatment intensity and postadmission survival. RESEARCH DESIGN: Retrospective cohort analysis of Pennsylvania Health Care Cost Containment Council discharge data April 2001…
The impact of menopause on health-related quality of life: Results from the STRIDE longitudinal study
Social Network Analysis of Patient Sharing Among Hospitals in Orange County, California
Objectives. We applied social network analyses to determine how hospitals within Orange County, California, are interconnected by patient sharing, a system which may have numerous public health implications. Methods. Our analyses considered 2 general patient-sharing networks: uninterrupted patient sharing (UPS; i.e., direct interhospital transfers) and total patient sharing (TPS; i.e., all interhospital patient sharing, including patients with in…
Gestational Weight Gain, Early Pregnancy Maternal Adiposity Distribution, and Maternal Hyperglycemia
Pre-pregnancy obesity and maternal nutritional biomarker status during pregnancy: A factor analysis
Objective Pre-pregnancy obesity has been associated with adverse birth outcomes. Poor essential fatty acid (EFA) and micronutrient status during pregnancy may contribute to these associations. We assessed the associations between pre-pregnancy BMI and nutritional patterns of maternal micronutrient and EFA status during mid-pregnancy. Design A cross-sectional analysis from a prospective cohort study. Women provided non-fasting blood samples at ≤20…
Who Were the Early Adopters of Dabigatran: An Application of Group-based Trajectory Models
BACKGROUND: Variation in physician adoption of new medications is poorly understood. Traditional approaches (eg, measuring time to first prescription) may mask substantial heterogeneity in technology adoption. OBJECTIVE: Apply group-based trajectory models to examine the physician adoption of dabigratran, a novel anticoagulant. METHODS: A retrospective cohort study using prescribing data from IMS XponentTM on all Pennsylvania physicians regularly…
Differences in Hospital Risk-standardized Mortality Rates for Acute Myocardial Infarction When Assessed Using Transferred and Nontransferred Patients
BACKGROUND: One in 5 patients with acute myocardial infarction (AMI) are transferred between hospitals. However, current hospital performance measures based on AMI mortality exclude these patients from the evaluation of referral hospitals. OBJECTIVE: To determine the relationship between risk-standardized mortality for transferred and nontransferred patients at referral hospitals. RESEARCH DESIGN: This is a retrospective cohort study. SUBJECTS: F…
An Examination of Claims-based Predictors of Overdose from a Large Medicaid Program
BACKGROUND: Health systems may play an important role in identification of patients at-risk of opioid medication overdose. However, standard measures for identifying overdose risk in administrative data do not exist. OBJECTIVE: Examine the association between opioid medication overdose and 2 validated measures of nonmedical use of prescription opioids within claims data. RESEARCH DESIGN: A longitudinal retrospective cohort study that estimated as…
Associations of Total, Cognitive/Affective, and Somatic Depressive Symptoms and Antidepressant Use With Cardiovascular Disease–Relevant Biomarkers in HIV: Veterans Aging Cohort Study
OBJECTIVE: We sought to determine the associations of total, cognitive/affective, and somatic depressive symptoms and antidepressant use with biomarkers of processes implicated in cardiovascular disease in HIV (HIV-CVD). METHODS: We examined data from 1546 HIV-positive and 843 HIV-negative veterans. Depressive symptoms were assessed using the Patient Health Questionnaire-9, and past-year antidepressant use was determined from Veterans Affair phar…
Weighted Lottery to Equitably Allocate Scarce Supply of Covid-19 Monoclonal Antibody
The findings of this quality improvement study suggest an ADI-weighted lottery process to allocate scarce resources is feasible in a large health system and resulted in more drug allocation to and receipt of drug by individuals who reside in disadvantaged neighborhoods. Although the ADI-weighted lottery also resulted in more drug allocation to Black individuals compared with an unweighted process, they were less likely to accept allocation and re…
Medicine (12 works) · Internal Medicine (9 works) · Internal Medicine (6 works) · Emergency Medicine (5 works) · Emergency Medicine (5 works) · Family medicine (5 works) · Retrospective cohort study (5 works) · Cohort (3 works) · Confidence interval (3 works) · Health Systems, Economic Evaluations, Quality of Life (3 works)