Linking the National Cardiovascular Data Registry CathPCI Registry with Medicare claims data: validation of a longitudinal cohort of elderly patients undergoing cardiac catheterization.
Circ Cardiovasc Qual Outcomes
; 5(1): 134-40, 2012 Jan.
Article
in En
| MEDLINE
| ID: mdl-22253370
ABSTRACT
BACKGROUND:
The National Cardiovascular Data Registry CathPCI Registry was recently linked with longitudinal Centers for Medicare & Medicaid (CMS) claims data. The degree to which this linked cohort is representative of the overall CathPCI Registry and CMS PCI populations is unknown. METHODS ANDRESULTS:
CathPCI Registry records were linked to CMS inpatient claims using indirect identifiers. We examined the degree to which hospitals and patients in the linked cohort are representative of the elderly (≥65 years) CathPCI Registry and CMS populations. From 2004 to 2006, 1492 hospitals filed CMS PCI claims and 663 contributed CathPCI Registry data. Of these hospitals, 643 (97%) were linked across data sources. Compared with all CMS PCI hospitals, the linked data set contained fewer governmental, northeastern, southern, and low-volume (<200 beds) sites. Among CMS beneficiaries, 993,351 PCI procedures were performed, including 398,508 (40.1%) at centers in the linked database. Of these, 341,916 (86%) were linked to CathPCI Registry records. Linked and unlinked CMS patients had similar demographic and clinical features. In the CathPCI Registry database, 477,456 elderly patients underwent PCI, with 359,077 (75%) linked to CMS claims. Linked and unlinked National Cardiovascular Data Registry patients were similar, except for less commercial or health maintenance organization insurance in the linked cohort.CONCLUSIONS:
By using deterministic matching strategies, a large and representative cohort with detailed clinical data from the CathPCI Registry and longitudinal follow-up from CMS claims has been created.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Insurance Claim Review
/
Cardiac Catheterization
/
Cardiovascular Diseases
/
Registries
Type of study:
Observational_studies
/
Risk_factors_studies
Limits:
Aged
/
Humans
Country/Region as subject:
America do norte
Language:
En
Journal:
Circ Cardiovasc Qual Outcomes
Journal subject:
ANGIOLOGIA
/
CARDIOLOGIA
Year:
2012
Document type:
Article
Affiliation country:
United States