Table 1 Description of Population and Demographic Variables
From: Spatial analysis of elderly access to primary care services
Variable | Description | Source and primary level |
|---|---|---|
Medicare FS Beneficiary Data | ||
ACSCRATE | Count of admissions for any of 11 ACSCs, per 1,000 Medicare FFS beneficiaries, in the ZIP code of residence | CMS FFS MEDPAR claims, 1998–2000, ZIP code of residence |
XMEN | Proportion of FFS beneficiaries in the ZIP code of residence that are male | " |
XDUAL | Proportion of FFS beneficiaries in the ZIP code of residence that are dually eligible for Medicare and Medicaid | " |
XBLACK | Proportion of FFS beneficiaries in the ZIP code of residence that are black | " |
XOTHER | Proportion of FFS beneficiaries in the ZIP code of residence that are other races than white or black | " |
XDIED | Proportion of FFS beneficiaries in the ZIP code of residence that died | " |
XOLDER | Proportion of FFS beneficiaries in the ZIP code of residence that are over 80 | " |
RISK | Median PIP_DCG risk score for FFS beneficiaries in the ZIP code of residence | " |
HIQUINT | Proportion of FFS beneficiaries in the ZIP code of residence that are above the median in PIP_DCG risk score | " |
XDIAB | Proportion of FFS beneficiaries in the ZIP code of residence that are diabetic | " |
Demographic Census data | ||
XELDERPOV | Proportion of elderly in the census tract with 1999 income below the poverty level | US Census, census tract |
POVRATIO | Ratio of proportion elderly in poverty to proportion general population in poverty | " |
XTRURELD | Proportion elderly in the county who reside in rural census tracts | " |
RURATIO | Ratio of proportion elderly in rural census tracts to the proportion of total population in rural census tracts | " |
XLIVALONE | Proportion of elderly who live alone | " |
XLCOMUTE | Proportion of the workforce that commute longer than 60 minutes to work, each way | " |
XPOORNE | Proportion of the elderly population who speak little or no English | " |
PDENSITY | Population per square mile | " |