Leighton Chan
Biographic Data
| ID | 5535226 |
|---|---|
| NAME | Leighton Chan |
| GIVEN NAMES | Leighton |
| FAMILY NAME | Chan |
| SIGNATURE | CHAN L |
| AFFILIATIONS | National Institutes of Health |
| ORCID | 0000-0001-9001-872X |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 5 |
| WORKS AS AUTHOR | 12 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2004 |
| LATEST PUBLICATION YEAR | 2019 |
| H-INDEX | 1 |
Broadening horizons
Background Human activity and the interaction between health conditions and activity is a critical part of understanding the overall function of individuals. The World Health Organization’s International Classification of Functioning, Disability and Health (ICF) models function as all aspects of an individual’s interaction with the world, including organismal concepts such as individual body structures, functions, and pathologies, as well as the …
Improving measures of work-related physical functioning
Conceptualizing disability in US national surveys
Difference, Disparity, and Disability
BACKGROUND: In the United States, research on health disparities has begun to include people with disabilities as a minority population. However, there is a gap in our knowledge of whether, and to what extent, racial and ethnic disparities may affect the health or health care access of people with disabilities. OBJECTIVES: We examined potential disparities in overall health, insurance coverage status, and health service use between non-Hispanic w…
First in Line
BACKGROUND: Given the complexity of the adjudication process and volume of applications to Social Security Administration's (SSA) disability programs, many individuals with serious medical conditions die while awaiting an application decision. Limitations of traditional survival methods called for a new empirical approach to identify conditions resulting in rapid mortality. OBJECTIVE: To identify health conditions associated with significantly hi…
Connecting Contemporary Paradigms to the Social Security Administration’s Disability Evaluation Process
From 1998 to 2008, the Social Security Administration's (SSA) disability insurance program (DI) applications rose from 1.2 million to 2.3 million and exceeded 3 million in 2009. Given these large and growing numbers, even small changes in processing disability applications may reduce processing time, lower program costs, and improve performance of SSA's disability programs. A literature review examining current conceptual models of disability and…
Ongoing Coverage for Ongoing Care
Objectives. We sought to determine how part-year and full-year gaps in health insurance coverage affected working-aged persons with chronic health care needs. Methods. We conducted multivariate analyses of the 2002–2004 Medical Expenditure Panel Survey to compare access, utilization, and out-of-pocket spending burden among key groups of persons with chronic conditions and disabilities. The results are generalizable to the US community-dwelling po…
If We Build It, Who Will Come
BACKGROUND: Currently, there is a call to implement and test the patient-centered medical home in adult populations, particularly among those with chronic conditions. However, the size, composition, and service use of the population who might require this coordinated care model need to be assessed, as does the way they are defined and identified. OBJECTIVES: Using nationally representative data from the 2002 to 2004 Medical Expenditure Panel Surv…
Quality of Care for Myocardial Infarction in Rural and Urban Hospitals
BACKGROUND: In the mid-1990s, significant gaps existed in the quality of acute myocardial infarction (AMI) care between rural and urban hospitals. Since then, overall AMI care quality has improved. This study uses more recent data to determine whether rural-urban AMI quality gaps have persisted. METHODS: Using inpatient records data for 34,776 Medicare beneficiaries with AMI from 2000-2001, unadjusted and logistic regression analysis compared rec…
Geographic Differences in Use of Home Oxygen for Obstructive Lung Disease
RATIONALE: Home oxygen is the most expensive equipment item that Medicare purchases ($1.7 billion/year). OBJECTIVES: To assess geographic differences in supplemental oxygen use. METHODS: Retrospective cohort analysis of oxygen claims for a 20% random sample of Medicare patients hospitalized for obstructive lung disease in 1999 and alive at the end of 2000. MEASUREMENTS AND MAIN RESULTS: While 33.7% of the 34,916 hospitalized patients used supplem…
Quality of Care for Acute Myocardial Infarction in Rural and Urban US Hospitals
Context: Acute myocardial infarction (AMI) is a common and important cause of admission to US rural hospitals, as transport of patients with AMI to urban settings can result in unacceptable delays in care. Purpose: To examine the quality of care for patients with AMI in rural hospitals with differing degrees of remoteness from urban centers. Methods: This cohort study used data from the Cooperative Cardiovascular Project (CCP), including 4,085 ac…
An Analysis of Medicare's Incentive Payment Program for Physicians in Health Professional Shortage Areas
Context: Medicare's Incentive Payment (MIP) program provides a 10% bonus payment to providers who treat Medicare patients in rural and urban areas where there is a shortage of generalist physicians. Purpose: To examine the experience of Alaska, Idaho, North Carolina, South Carolina, and Washington with the MIP program. We determined the program's utilization and which types of physicians received payments. Methods: Retrospective cohort design, ut…
Ongoing Coverage for Ongoing Care
Objectives. We sought to determine how part-year and full-year gaps in health insurance coverage affected working-aged persons with chronic health care needs. Methods. We conducted multivariate analyses of the 2002–2004 Medical Expenditure Panel Survey to compare access, utilization, and out-of-pocket spending burden among key groups of persons with chronic conditions and disabilities. The results are generalizable to the US community-dwelling po…
Connecting Contemporary Paradigms to the Social Security Administration’s Disability Evaluation Process
From 1998 to 2008, the Social Security Administration's (SSA) disability insurance program (DI) applications rose from 1.2 million to 2.3 million and exceeded 3 million in 2009. Given these large and growing numbers, even small changes in processing disability applications may reduce processing time, lower program costs, and improve performance of SSA's disability programs. A literature review examining current conceptual models of disability and…
Quality of Care for Acute Myocardial Infarction in Rural and Urban US Hospitals
Context: Acute myocardial infarction (AMI) is a common and important cause of admission to US rural hospitals, as transport of patients with AMI to urban settings can result in unacceptable delays in care. Purpose: To examine the quality of care for patients with AMI in rural hospitals with differing degrees of remoteness from urban centers. Methods: This cohort study used data from the Cooperative Cardiovascular Project (CCP), including 4,085 ac…
An Analysis of Medicare's Incentive Payment Program for Physicians in Health Professional Shortage Areas
Context: Medicare's Incentive Payment (MIP) program provides a 10% bonus payment to providers who treat Medicare patients in rural and urban areas where there is a shortage of generalist physicians. Purpose: To examine the experience of Alaska, Idaho, North Carolina, South Carolina, and Washington with the MIP program. We determined the program's utilization and which types of physicians received payments. Methods: Retrospective cohort design, ut…
Quality of Care for Myocardial Infarction in Rural and Urban Hospitals
BACKGROUND: In the mid-1990s, significant gaps existed in the quality of acute myocardial infarction (AMI) care between rural and urban hospitals. Since then, overall AMI care quality has improved. This study uses more recent data to determine whether rural-urban AMI quality gaps have persisted. METHODS: Using inpatient records data for 34,776 Medicare beneficiaries with AMI from 2000-2001, unadjusted and logistic regression analysis compared rec…
Geographic Differences in Use of Home Oxygen for Obstructive Lung Disease
RATIONALE: Home oxygen is the most expensive equipment item that Medicare purchases ($1.7 billion/year). OBJECTIVES: To assess geographic differences in supplemental oxygen use. METHODS: Retrospective cohort analysis of oxygen claims for a 20% random sample of Medicare patients hospitalized for obstructive lung disease in 1999 and alive at the end of 2000. MEASUREMENTS AND MAIN RESULTS: While 33.7% of the 34,916 hospitalized patients used supplem…
Connecting Contemporary Paradigms to the Social Security Administration’s Disability Evaluation Process
From 1998 to 2008, the Social Security Administration's (SSA) disability insurance program (DI) applications rose from 1.2 million to 2.3 million and exceeded 3 million in 2009. Given these large and growing numbers, even small changes in processing disability applications may reduce processing time, lower program costs, and improve performance of SSA's disability programs. A literature review examining current conceptual models of disability and…
Ongoing Coverage for Ongoing Care
Objectives. We sought to determine how part-year and full-year gaps in health insurance coverage affected working-aged persons with chronic health care needs. Methods. We conducted multivariate analyses of the 2002–2004 Medical Expenditure Panel Survey to compare access, utilization, and out-of-pocket spending burden among key groups of persons with chronic conditions and disabilities. The results are generalizable to the US community-dwelling po…
If We Build It, Who Will Come
BACKGROUND: Currently, there is a call to implement and test the patient-centered medical home in adult populations, particularly among those with chronic conditions. However, the size, composition, and service use of the population who might require this coordinated care model need to be assessed, as does the way they are defined and identified. OBJECTIVES: Using nationally representative data from the 2002 to 2004 Medical Expenditure Panel Surv…
Conceptualizing disability in US national surveys
Difference, Disparity, and Disability
BACKGROUND: In the United States, research on health disparities has begun to include people with disabilities as a minority population. However, there is a gap in our knowledge of whether, and to what extent, racial and ethnic disparities may affect the health or health care access of people with disabilities. OBJECTIVES: We examined potential disparities in overall health, insurance coverage status, and health service use between non-Hispanic w…
First in Line
BACKGROUND: Given the complexity of the adjudication process and volume of applications to Social Security Administration's (SSA) disability programs, many individuals with serious medical conditions die while awaiting an application decision. Limitations of traditional survival methods called for a new empirical approach to identify conditions resulting in rapid mortality. OBJECTIVE: To identify health conditions associated with significantly hi…
Improving measures of work-related physical functioning
Broadening horizons
Background Human activity and the interaction between health conditions and activity is a critical part of understanding the overall function of individuals. The World Health Organization’s International Classification of Functioning, Disability and Health (ICF) models function as all aspects of an individual’s interaction with the world, including organismal concepts such as individual body structures, functions, and pathologies, as well as the …
Medicine (10 works) · Gerontology (6 works) · Health care (6 works) · Environmental health (5 works) · Population (5 works) · Business (4 works) · Nursing (4 works) · Primary Care and Health Outcomes (4 works) · Chronic Disease Management Strategies (3 works) · Demography (3 works)