2011 National Healthcare Quality and Disparities Reports
|Median income of patient's ZIP Code|
|Total||First quartile (lowest income)||Second quartile||Third quartile||Fourth quartile (highest income)|
a. Consistent with the Agency for Healthcare Research and Quality (AHRQ) Inpatient Quality Indicators (IQI) software, acute myocardial infarction must be the principal diagnosis. Obstetric admissions and transfers to other hospitals are excluded.
b. Rates are adjusted by age, major diagnostic category (MDC), all patient refined-diagnosis related group (APR-DRG) risk of mortality score, and transfers into the hospital.� The AHRQ IQI software was modified to not use the present on admission (POA) indicators (or estimates of the likelihood of POA for secondary diagnosis).
Key: SE: standard error.
Source: Agency for Healthcare Research and Quality (AHRQ), Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample and AHRQ Quality Indicators, modified version 4.1.