Table 15. Independent Variables Used in the Regression Analyses: Mean Value in U.S. Census Region and Range in PSRO Areas.
Variable | Mean | Standard Deviation | Highest PSRO area | Lowest PSRO area | Variable | Mean | Standard Deviation | Highest PSRO area | Lowest PSRO area |
---|---|---|---|---|---|---|---|---|---|
Age (Medicare enrollees: percent 75 years and over) | Short-stay beds (per 1,000 Medicare enrollees) | ||||||||
Northeast | 41.3 | 1.8 | 46.7 | 36.9 | Northeast | 40.1 | 7.6 | 61.2 | 24.7 |
North Central | 41.9 | 2.1 | 45.6 | 36.6 | North Central | 48.5 | 6.7 | 64.0 | 32.3 |
South | 39.1 | 2.3 | 44.4 | 33.0 | South | 45.7 | 12.8 | 79.4 | 17.8 |
West | 40.3 | 2.9 | 45.1 | 31.1 | West | 41.6 | 23.3 | 164.0 | 26.2 |
Sex (Medicare enrollees: percent female) | Occupancy in short-stay hospitals (percent) | ||||||||
Northeast | 60.9 | 1.2 | 63.2 | 57.9 | Northeast | 80.8 | 4.7 | 88.3 | 68.6 |
North Central | 59.7 | 1.6 | 62.6 | 54.9 | North Central | 73.7 | 5.2 | 82.4 | 60.9 |
South | 59.2 | 2.3 | 64.1 | 53.2 | South | 72.4 | 4.7 | 85.5 | 65.5 |
West | 58.2 | 3.1 | 62.3 | 48.4 | West | 67.0 | 4.6 | 75.6 | 54.5 |
Race (Medicare enrollees: percent non-white) | Physicians (per 1,000 Medicare enrollees) | ||||||||
Northeast | 5.5 | 5.2 | 22.3 | .3 | Northeast | 15.5 | 5.0 | 27.4 | 6.8 |
North Central | 5.3 | 4.5 | 23.4 | .2 | North Central | 12.1 | 4.4 | 24.8 | 5.0 |
South | 14.2 | 11.0 | 51.8 | 2.6 | South | 12.1 | 8.8 | 49.3 | 4.8 |
West | 6.8 | 12.1 | 70.9 | .6 | West | 17.4 | 6.6 | 41.5 | 10.0 |
Density (Percent of total population living in SMSAs) | Nursing home beds (per 1,000 Medicare enrollees) | ||||||||
Northeast | 84.4 | 29.2 | 100.0 | .0 | Northeast | 40.7 | 17.7 | 84.0 | 8.8 |
North Central | 70.3 | 29.3 | 100.0 | .0 | North Central | 57.3 | 17.4 | 106.2 | 19.2 |
South | 64.4 | 29.4 | 100.0 | .0 | South | 40.8 | 17.6 | 85.1 | 9.4 |
West | 80.8 | 32.9 | 100.0 | .0 | West | 49.9 | 17.8 | 105.0 | 12.3 |
Source: Medicare Statistical System: Age, Sex, Race, (1979)
Area Resource File: Short-stay beds, physicians, and occupancy, (1978); Density, (1977); Nursing home beds, (1976)