Study of the
|This ongoing population-based epidemiologic study of 3,050 Mexican Americans aged 65 and older living
in five Southwestern states - California, Arizona, New Mexico, Colorado and Texas – is funded by the
National Institute on Aging (AG10939). The study provides sociodemographics, health and psychosocial
characteristics, and health care needs to estimate prevalence and incidence of major conditions and
disabilities, mortality, and change in health over time. Data have been collected for nine waves beginning
in 1993-1994. In waves 7 and 9, the HEPESE interviewed focal relatives/informants. The HEPESE data
from waves 1 through 8 is available in the National Archive of Computerized Data on Aging and available
at: http://www.icpsr.umich.edu/icpsrweb/ICPSR/studies/25041. K. Markides is PI.
|This is an ancillary study to the HEPESE, funded by the National Institute on Minority and Health
Disparities (R01MD010355) that links the survey with Medicare files to better understand the long-term
health outcomes, healthcare utilization, and life expectancy of this population, with a focus on the impact of
frailty and disability on Mexican American older adults. The study explores transitions and trajectories in
frailty stages (non-frail, pre-frail, and frail) over 20 years as well as life expectancy tables for older Mexican
Americans based on stages of frailty. The link with Medicare claims files allows information on the use of
health resources, presence of chronic diseases, hospitalization, and the use of skilled nursing and other
post-acute services. K. Ottenbacher is PI.
and Aging Study
|This is a national representative sample of Mexicans aged 50 years and older (born prior to 1951) in 2001.
The goal of the survey is to examine the aging processes and its disease and disability burden in a large
representative panel of older Mexicans; to examine the effects of individual behaviors, early life
circumstances, migration and economic history, community characteristics, and family transfer systems on
multiple health outcomes; and to compare the health dynamics of older Mexicans with comparably aged
Mexican-born migrants in the U.S. and second generation Mexican-American using similar data from the
U.S. population (for example the biennial HRS) to assess the durability of the migrant health advantage.
Four waves of data (2002, 2003, 2012 and 2015) have been collected and the data is available in the
MHAS web page at http://www.mhasweb.org. R. Wong is PI.
|This longitudinal panel study surveys a representative sample of ~20,000 Americans over the age of 50
every two years. Supported by the NIA - (U01AG009740) and the Social Security Administration, the HRS
explores the changes in labor force participation and the health transitions that individuals undergo toward
the end of their work lives and in the years that follow. Since its launch in 1992, the study has collected
information about income, work, assets, pension plans, health insurance, disability, physical health and
functioning, cognitive functioning, and health care expenditures. Conducted by the University of Michigan,
the study and it is available for researchers and analysts at http://hrsonline.isr.umich.edu/.
and Aging Trends
|This is a longitudinal study of a nationally representative sample of Medicare beneficiaries ages 65 and
older. The NHATS started in 2011 and five rounds have been collected. Annual, in-person interviews
collect detailed information on the disablement process and its consequences. The NHATS promotes
research to guide efforts to reduce disability, maximize health and independent functioning, and enhance
quality of life at older ages. The study provide the basis for understanding trends in late-life functioning,
how these differ for various population subgroups, and the economic and social consequences of aging
and disability for individuals, families, and society. The data is available at (https://www.nhats.org/).
|This is a cross-sectional household interview survey, representative of the United States, conducted every
year by the National Center for Health Statistics (NCHS) since 1960, which is part of the Centers for
Disease Control and Prevention (CDC). The purpose of this survey is to monitor the health of the non-institutionalized,
civilian population. Sampling and interviews are continuous throughout each year. The
NHIS includes a representative sampling of households and non-institutional groups. The NHIS sample is
drawn from each State and the District of Columbia. The study collects information on socio-demographics;
physical and mental health status; chronic conditions, including asthma and diabetes; access to and use of
health care services; health insurance coverage and type of coverage, health-related behaviors, including
smoking, alcohol use, and physical activity; measures of functioning and activity limitations; and
immunizations. The data is available at https://www.cdc.gov/nchs/nhis/index.htm.
|This is a continuous, in-person survey of a representative national sample of both institutionalized and
non-institutionalized Medicare beneficiaries that has been occurring since 1991. Data is obtained from
multiple in-person interviews and through linkage to Medicare claims files. The data is collected for a
period of four years (as participants complete and exit the survey, new ones are enrolled) with a rotating
cohort design. The MCBS contains information on Medicare beneficiaries’ usual sources of care,
satisfaction with care, access to care, use and cost of all types of medical services, health insurance, living
arrangements, income, health status, and physical functioning. The data is available at
|This is a program of studies designed to assess the health and nutritional status of adults and children in
the United States beginning in 1960. The survey combines interviews and physical examinations.
Beginning in 1999, NHANES became a continuous survey without a break between cycles. The survey
include demographic, socioeconomic, dietary, and health-related questions. The examination component
consists of medical, dental, physiological measurements, and laboratory tests. All data is available at
|It contains demographic and enrollment information about each beneficiary enrolled in Medicare during a
calendar year (beneficiary’s unique identifier, state and county codes, zip code, date of birth, date of death,
sex, race, age, monthly entitlement indicators (A/B/Both), reasons for entitlement, state buy-in indicators,
and monthly managed care indicators). In addition, we have three segments under the beneficiary
summary file: Chronic Conditions segment, Other Chronic or Potentially Disabling Conditions segment,
Cost & Utilization segment. (http://www.resdac.org/cms-data/files/mbsf).
|It has information on inpatient hospital and skilled nursing facility (SNF) final action stay records. An
inpatient "stay" record summarizes all services rendered to a beneficiary from the time of admission to a
facility through discharge. Each MedPAR record may represent one claim or multiple claims, depending on
the length of a beneficiary's stay and the amount of inpatient services used throughout the stay
|It contains institutional outpatient providers, such as hospital outpatient departments, rural health clinics,
renal dialysis facilities, outpatient rehabilitation facilities, outpatient rehabilitation facilities, and community
mental health centers. The claims include diagnosis (ICD-9), Healthcare Common Procedure Coding
System (HCPCS) codes, dates of service, reimbursement amount, outpatient provider number, revenue
center codes, and beneficiary demographic information (http://www.resdac.org/cms-data/files/op-rif).
|It contains final fee-for-service claims submitted on a CMS-1500 claim form. Most of the claims are
from physicians, physician assistants, clinical social workers, nurse practitioners. Claims for other
providers, such as free-standing facilities are also found in the Carrier file. Examples include independent
clinical laboratories, ambulance providers, and free-standing ambulatory surgical centers. The claims
include diagnosis and procedure (ICD-9, CMS HCPCS codes), dates of service, reimbursement amounts,
provider numbers (e.g., UPIN, PIN, NPI), and beneficiary demographic informatio.