James Lubitz
Biographic Data
| ID | 5024776 |
|---|---|
| NAME | James Lubitz |
| GIVEN NAMES | James |
| FAMILY NAME | Lubitz |
| SIGNATURE | LUBITZ J |
| AFFILIATIONS | National Center for Health Statistics |
| VERIFIED | No |
| TOTAL WORKS | 16 |
| TOTAL CITATIONS | 139 |
| AUTHOR COUNT | 16 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1975 |
| LATEST PUBLICATION YEAR | 2013 |
| H-INDEX | 5 |
Trends in Late-Life Activity Limitations in the United States
This article updates trends from five national U.S. surveys to determine whether the prevalence of activity limitations among the older population continued to decline in the first decade of the twenty-first century. Findings across studies suggest that personal care and domestic activity limitations may have continued to decline for those ages 85 and older from 2000 to 2008, but generally were flat since 2000 for those ages 65–84. Modest increas…
The Predicted Effects of Chronic Obesity in Middle Age on Medicare Costs and Mortality
BACKGROUND: The prevalence of adult obesity has increased in recent decades. It is important to predict the long-term effect of body weight, and changes in body weight, in middle age on longevity and Medicare costs in older ages. METHODS: The relationships between individuals' characteristics in middle age and subsequent Medicare costs and mortality were estimated from the linkage of the National Health and Nutrition Examination Survey I Epidemio…
Estimation of multi-state life table functions and their variability from complex survey data using the SPACE Program
The multistate life table (MSLT) model is an important demographic method to document life cycle processes. In this paper, we present the SPACE (Stochastic Population Analysis for Complex Events) program to estimate MSLT functions and their sampling variability. It has several advantages over other programs, including the use of micro-simulation and the bootstrap method to estimate the variance of MSLT functions. Simulation enables researchers to…
Retrospective information on health status and its application for population health measures
Healthy life expectancies are almost always calculated by using health data from cross-sectional surveys. This type of calculation is done partly because data from longitudinal surveys are not always available, and when they are available, they are collected at intervals that are longer than one year. In such cases, collecting health information retrospectively for the years skipped by the survey is useful. The main purpose of this paper is to sh…
Was there compression of disability for older Americans from 1992 to 2003
Medical advances and the growth of the elderly population have focused interest on trends in the health of the elderly. Three theories have been advanced to describe these trends: compression of morbidity, expansion of morbidity, and dynamic equilibrium. We applied multistate life table methods to the Medicare Current Beneficiary Survey to estimate active and disabled life expectancy from 1992 to 2003, defining disability as having difficulty wit…
Resolving inconsistencies in trends in old-age disability
In September 2002, a technical working group met to resolve previously published inconsistencies across national surveys in trends in activity limitations among the older population. The 12-person panel prepared estimates from five national data sets and investigated methodological sources of the inconsistencies among the population aged 70 and older from the early 1980s to 2001. Although the evidence was mixed for the 1980s and it is difficult t…
Payment Source and Length of Use Among Home Health Agency Discharges
PURPOSE: Our study compared (1) length of use among home health care (HHC) discharges with Medicare, Medicaid, or private health insurance between 1991 and 2000 and (2) factors associated with length of HHC use among discharges with Medicare, Medicaid, or private health insurance. METHODS: Data were obtained from the 1992, 1994, 1996, 1998, and 2000 National Home and Hospice Care Surveys (n = 18,416). Logistic regressions and stratified analyses …
Patterns of Health Care and Disability for Medicare Beneficiaries under 65
Disabled people under age 65 are a vulnerable and growing segment of the Medicare population, yet Medicare reform has focused on the needs of the aged. This study linked the Medicare Current Beneficiary Survey to Social Security Administration records to analyze patterns of health care for disabled beneficiaries by reason for disability. We found substantial variation in average health care costs by type of service, including prescription drugs, …
New Estimates of Lifetime Nursing Home Use
OBJECTIVES: The elderly population at risk for costly nursing home care is increasing. It is important to understand patterns of lifetime nursing home use and their implications for public and private payers. We provide new lifetime nursing home use estimates, project future use, and discuss cost implications. METHODS: Data are next-of-kin reports of nursing home use for representative samples of decedents from the 1986 and 1993 National Mortalit…
Disenrollment of Medicare Cancer Patients from Health Maintenance Organizations
OBJECTIVES: There is concern that financial incentives in health maintenance organizations (HMOs) might result in pressures to induce sicker members to disenroll. The authors compared disenrollment rates of Medicare HMO enrollees with cancer with disenrollment rates for cancer-free enrollees, using Medicare enrollment files linked to population-based tumor registry data from the Surveillance, Epidemiology, and End Results (SEER) Program. METHODS:…
Stage of cancer at diagnosis for Medicare HMO and fee-for-service enrollees
OBJECTIVES. Health maintenance organizations (HMOs) with Medicare contracts often provide cancer screening and preventive services not covered under fee-for-service. This study compared cancer patients in HMOs and fee-for-service on stage at diagnosis. METHODS. The study examined stage at diagnosis for aged Medicare enrollees in HMOs and fee-for-service, using information from the Surveillance, Epidemiology, and End Results program, linked with M…
Trends in Medicare Payments in the Last Year of Life
BACKGROUND: Increased attention is being paid to the amount and types of medical services rendered in the period before death. There is a popular impression that a greater share of resources is being devoted to dying patients than in the past. We examined trends in the proportion of Medicare expenditures for persons 65 years old or older in their last year of life to determine whether there were any changes from 1976 to 1988. METHODS: Using Medic…
Medicare Beneficiaries
Rehospitalization following surgery is widely recognized as an important outcome measure. The purpose of this study was to identify rehospitalizations for adverse events following 8 procedures, using diagnosis and procedure codes contained in Medicare claims files. Adverse events were broadly defined as: 1) complications; 2) failure of the procedure to achieve its therapeutic goal; and 3) untoward events associated with the natural history of the…
Potential for Cancer Related Health Services Research Using a Linked Medicare-Tumor Registry Database
The National Cancer Institute and the Health Care Financing Administration share a strong research interest in cancer costs, access to cancer prevention and treatment services, and cancer patient outcomes. To develop a database for such research, the two agencies have undertaken a collaborative effort to link Medicare Program data with the Surveillance, Epidemiology, and End Results (SEER) Program database. The SEER Program is a system of 9 popul…
Cost-Sharing and Prior Authorization Effects on Medicaid Services in California
Providers for California's Medical program were interviewed to determine their reaction to the copayment experiment. Private physicians, pharmacists, and nursing homes routinely collected the copayments and though it was not a particular hardship on the patients. Hospital outpatient departments often did not collect. Physicians both in hospitals and in private practice generally did not know which patients were copayers and hence copayment had no…
Cost-Sharing and Prior Authorization Effects on Medicaid Services in California
In January 1972, California initiated a cost-sharing "experiment" as a means of containing rising costs of the Medicaid program. Beneficiaries who had some personal assets were required to pay a token amount for each doctor visit or prescription. This was expected to deter unnecessary services without affecting really needed care. An interview survey was made of beneficiaries continuously in copayment status throughout the 18 months of the experi…
Resolving inconsistencies in trends in old-age disability
In September 2002, a technical working group met to resolve previously published inconsistencies across national surveys in trends in activity limitations among the older population. The 12-person panel prepared estimates from five national data sets and investigated methodological sources of the inconsistencies among the population aged 70 and older from the early 1980s to 2001. Although the evidence was mixed for the 1980s and it is difficult t…
Trends in Late-Life Activity Limitations in the United States
This article updates trends from five national U.S. surveys to determine whether the prevalence of activity limitations among the older population continued to decline in the first decade of the twenty-first century. Findings across studies suggest that personal care and domestic activity limitations may have continued to decline for those ages 85 and older from 2000 to 2008, but generally were flat since 2000 for those ages 65–84. Modest increas…
Stage of cancer at diagnosis for Medicare HMO and fee-for-service enrollees
OBJECTIVES. Health maintenance organizations (HMOs) with Medicare contracts often provide cancer screening and preventive services not covered under fee-for-service. This study compared cancer patients in HMOs and fee-for-service on stage at diagnosis. METHODS. The study examined stage at diagnosis for aged Medicare enrollees in HMOs and fee-for-service, using information from the Surveillance, Epidemiology, and End Results program, linked with M…
Estimation of multi-state life table functions and their variability from complex survey data using the SPACE Program
The multistate life table (MSLT) model is an important demographic method to document life cycle processes. In this paper, we present the SPACE (Stochastic Population Analysis for Complex Events) program to estimate MSLT functions and their sampling variability. It has several advantages over other programs, including the use of micro-simulation and the bootstrap method to estimate the variance of MSLT functions. Simulation enables researchers to…
Was there compression of disability for older Americans from 1992 to 2003
Medical advances and the growth of the elderly population have focused interest on trends in the health of the elderly. Three theories have been advanced to describe these trends: compression of morbidity, expansion of morbidity, and dynamic equilibrium. We applied multistate life table methods to the Medicare Current Beneficiary Survey to estimate active and disabled life expectancy from 1992 to 2003, defining disability as having difficulty wit…
Cost-Sharing and Prior Authorization Effects on Medicaid Services in California
Providers for California's Medical program were interviewed to determine their reaction to the copayment experiment. Private physicians, pharmacists, and nursing homes routinely collected the copayments and though it was not a particular hardship on the patients. Hospital outpatient departments often did not collect. Physicians both in hospitals and in private practice generally did not know which patients were copayers and hence copayment had no…
Cost-Sharing and Prior Authorization Effects on Medicaid Services in California
In January 1972, California initiated a cost-sharing "experiment" as a means of containing rising costs of the Medicaid program. Beneficiaries who had some personal assets were required to pay a token amount for each doctor visit or prescription. This was expected to deter unnecessary services without affecting really needed care. An interview survey was made of beneficiaries continuously in copayment status throughout the 18 months of the experi…
Trends in Medicare Payments in the Last Year of Life
BACKGROUND: Increased attention is being paid to the amount and types of medical services rendered in the period before death. There is a popular impression that a greater share of resources is being devoted to dying patients than in the past. We examined trends in the proportion of Medicare expenditures for persons 65 years old or older in their last year of life to determine whether there were any changes from 1976 to 1988. METHODS: Using Medic…
Medicare Beneficiaries
Rehospitalization following surgery is widely recognized as an important outcome measure. The purpose of this study was to identify rehospitalizations for adverse events following 8 procedures, using diagnosis and procedure codes contained in Medicare claims files. Adverse events were broadly defined as: 1) complications; 2) failure of the procedure to achieve its therapeutic goal; and 3) untoward events associated with the natural history of the…
Potential for Cancer Related Health Services Research Using a Linked Medicare-Tumor Registry Database
The National Cancer Institute and the Health Care Financing Administration share a strong research interest in cancer costs, access to cancer prevention and treatment services, and cancer patient outcomes. To develop a database for such research, the two agencies have undertaken a collaborative effort to link Medicare Program data with the Surveillance, Epidemiology, and End Results (SEER) Program database. The SEER Program is a system of 9 popul…
Stage of cancer at diagnosis for Medicare HMO and fee-for-service enrollees
OBJECTIVES. Health maintenance organizations (HMOs) with Medicare contracts often provide cancer screening and preventive services not covered under fee-for-service. This study compared cancer patients in HMOs and fee-for-service on stage at diagnosis. METHODS. The study examined stage at diagnosis for aged Medicare enrollees in HMOs and fee-for-service, using information from the Surveillance, Epidemiology, and End Results program, linked with M…
Disenrollment of Medicare Cancer Patients from Health Maintenance Organizations
OBJECTIVES: There is concern that financial incentives in health maintenance organizations (HMOs) might result in pressures to induce sicker members to disenroll. The authors compared disenrollment rates of Medicare HMO enrollees with cancer with disenrollment rates for cancer-free enrollees, using Medicare enrollment files linked to population-based tumor registry data from the Surveillance, Epidemiology, and End Results (SEER) Program. METHODS:…
New Estimates of Lifetime Nursing Home Use
OBJECTIVES: The elderly population at risk for costly nursing home care is increasing. It is important to understand patterns of lifetime nursing home use and their implications for public and private payers. We provide new lifetime nursing home use estimates, project future use, and discuss cost implications. METHODS: Data are next-of-kin reports of nursing home use for representative samples of decedents from the 1986 and 1993 National Mortalit…
Patterns of Health Care and Disability for Medicare Beneficiaries under 65
Disabled people under age 65 are a vulnerable and growing segment of the Medicare population, yet Medicare reform has focused on the needs of the aged. This study linked the Medicare Current Beneficiary Survey to Social Security Administration records to analyze patterns of health care for disabled beneficiaries by reason for disability. We found substantial variation in average health care costs by type of service, including prescription drugs, …
Resolving inconsistencies in trends in old-age disability
In September 2002, a technical working group met to resolve previously published inconsistencies across national surveys in trends in activity limitations among the older population. The 12-person panel prepared estimates from five national data sets and investigated methodological sources of the inconsistencies among the population aged 70 and older from the early 1980s to 2001. Although the evidence was mixed for the 1980s and it is difficult t…
Payment Source and Length of Use Among Home Health Agency Discharges
PURPOSE: Our study compared (1) length of use among home health care (HHC) discharges with Medicare, Medicaid, or private health insurance between 1991 and 2000 and (2) factors associated with length of HHC use among discharges with Medicare, Medicaid, or private health insurance. METHODS: Data were obtained from the 1992, 1994, 1996, 1998, and 2000 National Home and Hospice Care Surveys (n = 18,416). Logistic regressions and stratified analyses …
Was there compression of disability for older Americans from 1992 to 2003
Medical advances and the growth of the elderly population have focused interest on trends in the health of the elderly. Three theories have been advanced to describe these trends: compression of morbidity, expansion of morbidity, and dynamic equilibrium. We applied multistate life table methods to the Medicare Current Beneficiary Survey to estimate active and disabled life expectancy from 1992 to 2003, defining disability as having difficulty wit…
Retrospective information on health status and its application for population health measures
Healthy life expectancies are almost always calculated by using health data from cross-sectional surveys. This type of calculation is done partly because data from longitudinal surveys are not always available, and when they are available, they are collected at intervals that are longer than one year. In such cases, collecting health information retrospectively for the years skipped by the survey is useful. The main purpose of this paper is to sh…
The Predicted Effects of Chronic Obesity in Middle Age on Medicare Costs and Mortality
BACKGROUND: The prevalence of adult obesity has increased in recent decades. It is important to predict the long-term effect of body weight, and changes in body weight, in middle age on longevity and Medicare costs in older ages. METHODS: The relationships between individuals' characteristics in middle age and subsequent Medicare costs and mortality were estimated from the linkage of the National Health and Nutrition Examination Survey I Epidemio…
Estimation of multi-state life table functions and their variability from complex survey data using the SPACE Program
The multistate life table (MSLT) model is an important demographic method to document life cycle processes. In this paper, we present the SPACE (Stochastic Population Analysis for Complex Events) program to estimate MSLT functions and their sampling variability. It has several advantages over other programs, including the use of micro-simulation and the bootstrap method to estimate the variance of MSLT functions. Simulation enables researchers to…
Trends in Late-Life Activity Limitations in the United States
This article updates trends from five national U.S. surveys to determine whether the prevalence of activity limitations among the older population continued to decline in the first decade of the twenty-first century. Findings across studies suggest that personal care and domestic activity limitations may have continued to decline for those ages 85 and older from 2000 to 2008, but generally were flat since 2000 for those ages 65–84. Modest increas…
Medicine (14 works) · Population (10 works) · Gerontology (9 works) · Health care (9 works) · Healthcare Policy and Management (9 works) · Gerontology (8 works) · Demography (7 works) · Global Health Care Issues (7 works) · Economic growth (6 works) · Environmental health (6 works)