Table 1.
US sociodemographic characteristics based on drive time to nearest ACHD center. Breakdown of the US adult 1 population by race/ethnicity, insurance status, poverty level, and highest attained educational level into four geographic catchment areas based on driving time to the nearest ACHD center
| Sociodemographic Characteristics | US Population ≥18 years | Drive-time Catchment Areas (hours) |
P-valuea | |||
|---|---|---|---|---|---|---|
| <1 | 1–4 | 4–6 | >6 | |||
| Total | 241 027 591 | 132 224 744 | 95 801 393 | 8 162 701 | 4 838 753 | <.001 |
| 54.9% | 39.7% | 3.4% | 2.0% | |||
| Race/ethnicity | <.001 | |||||
| White (Non-Hispanic) | 60.8% | 54.9% | 69.2% | 67.5% | 43.9% | |
| Black (Non-Hispanic) | 12.4% | 14.0% | 11.1% | 8.3% | 1.8% | |
| Hispanic | 18.2% | 20.3% | 13.8% | 18.8% | 47.1% | |
| Other | 9.0% | 10.8% | 5.9% | 5.4% | 7.2% | |
| Insuranceb | <.001 | |||||
| Insured | 70.7% | 72.2% | 70.4% | 63.0% | 48.1% | |
| Uninsured | 29.3% | 27.8% | 29.6% | 37.0% | 51.9% | |
| Povertyc | <.001 | |||||
| Above FPL | 85.6% | 86.8% | 84.5% | 82.8% | 81.1% | |
| Below/ FPL | 14.4% | 13.2% | 15.5% | 17.2% | 18.9% | |
| Educationd | <.001 | |||||
| College degree/higher | 31.1% | 35.7% | 25.5% | J 22.9% | 24.3% | |
| Less than college | 08.9% | 64.3% | 74.5% | 77.1% | 75.7% | |
Testing whether populations in the four catchment areas differ significantly in terms of selected sociodemographic characteristics.
Insurance status was defined as any type of health insurance including both private and public (Medicare or Medicaid) coverage.
The 2015 Federal Poverty Line (FPL) Guidelines were used. The federal poverty level is determined based on number of persons in a household; for example, in 2015 the federal poverty level was $27 890 for a family of four.
College degree or greater includes 4-year undergraduate degree or equivalent and any further graduate education. Less than college degree includes less than high school, high school degree or GED. trade school, and some college without degree completion.