How SEER-CAHPS differs from SEER-Medicare & SEER-MHOS

The SEER-CAHPS linkage results from a collaborative effort between the National Cancer Institute, the Surveillance, Epidemiology and End Results (SEER) registries, and the Centers for Medicare and Medicaid Services (CMS). SEER-CAHPS differs in several respects from other collaborative efforts by these organizations, including SEER-Medicare and SEER-MHOS.

Differences are summarized in the table below.

SEER-CAHPS SEER-Medicare SEER-MHOS
Years of linked data available* 1997-2013 1991-2013 1998-2013
Data files available
  • Clinical, demographic and cause of death data from cancer registries (SEER)
  • Medicare enrollment (all enrollees) and claims data (FFS enrollees only; does not include Part D data)
  • Physician and hospital characteristics
  • Experience of care (CAHPS) survey data, including self-reported health status measures
  • Clinical, demographic and cause of death data from cancer registries (SEER)
  • Medicare enrollment (all enrollees) and claims data (FFS enrollees only)
  • Physician and hospital characteristics
  • Clinical, demographic and cause of death data from cancer registries (SEER)
  • Health-related quality of life data from the Medicare Health Outcomes Survey (MHOS) of Medicare Advantage enrollees
Beneficiaries with cancer included Medicare beneficiaries residing in SEER areas who responded to a CAHPS survey between 1997 and 2013 All Medicare-eligible persons appearing in the SEER data who were diagnosed with cancer between 1991 and 2011, and their Medicare claims through 2013 Medicare Advantage (managed care) beneficiaries residing in SEER areas who responded to an MHOS survey between 1998 and 2013
Beneficiaries without cancer included Medicare beneficiaries residing in SEER areas who responded to a CAHPS survey between 1997 and 2013 May be requested; data come from a 5% random sample of Medicare beneficiaries in SEER areas Medicare beneficiaries residing in SEER areas who responded to an MHOS survey between 1998 and 2013
*Note SEER began collecting diagnostic data in 1973, thus, for select registries cancer information is available from 1973 on. Most data requests start in 1991 to make use of the linked data.