Table 1 Description of studies performed
Study and Comparisons | ||
|---|---|---|
| Ā | Trends in AMI mortality within VHA | Trends in AMI mortality within VHA and Medicare |
Time Period | 1/1/2004 - 9/30/2006 | 1/1/2000 - 6/30/2005 |
Study sample | All patients ā„65 years old with ICD-9-CM codes 410.xx | All patients ā„65 years old with ICD-9-CM codes 410 except 410.x2 |
Sample size | 11,609 patients | 27,494 VHA patients and 789,400 Medicare patients 789,400 Medicare patients |
Data Sources | Ā | Ā |
Identification of patients | Abstracted record of all patients with AMI (External Peer Review Program) | VA Patient Treatment File (PTF); Medicare Provider Analysis and Review (MedPAR) File Provider Analysis and Review (MedPAR) File |
Mortality | VA Vital Status File | MedPAR; VA Vital Status File |