Table 4.
Sample statistics by county (N) by regime (REG1, REG2, REG3), endoscopy sample (male and female, 2001-2005)
| REG11R14 = 1 & R25 = 1 (N = 2,056) | REG21R14 = 1 & R25 = 0 (N = 632) | REG31R14 = 0 & R25 = 0 (N = 445)reference group | |
|---|---|---|---|
| % Screening for colorectal cancer 2001-2005, among FFS Medicare enrollees | 37.8 (6.0) | 35.5 (6.4) | 34.8 (5.9) |
| % Age 65-74 in FFS Medicare | 59.8 (4.6) | 61.5 (4.1) | 59.2 (5.0) |
| % Age 75-84 in FFS Medicare | 33.5 (3.4) | 32.2 (3.2) | 33.5 (3.6) |
| % Age 85+ in FFS Medicare | 6.7 (1.6) | 6.4 (1.6) | 7.3 (2.0) |
| % Dual or ESRD in FFS Medicare | 19.3 (9.7) | 22.3 (11.1) | 20.1 (12.8) |
| % White in FFS Medicare | 92.9 (11.5) | 88.1 (12.6) | 90.2 (15.4) |
| % Black in FFS Medicare | 5.2 (9.7) | 7.2 (10.4) | 8.0 (14.9) |
| % Hispanic in FFS Medicare | 0.4 (1.7) | 3.0 (6.7) | 0.2 (0.4) |
| % Other race in FFS Medicare | 1.5 (6.3) | 1.7 (7.3) | 1.6 (6.1) |
| % Mover in 2001-2005 in FFS Medicare | 9.0 (3.7) | 11.2 (11.6) | 8.2 (3.4) |
| Average distance to closest provider | 8.8 (20.3) | 11.9 (12.3) | 14.2 (12.7) |
| managed care penetration, 2001 | 12.1 (12.5) | 6.9 (9.6) | 2.3 (4.1) |
| managed care penetration, 1998 | 13.6 (14.7) | 8.5 (11.9) | 3.4 (6.6) |
| Population density in 2001 (in thousands) | 0.3 (2.0) | 0.1 (0.3) | 0.0 (0.1) |
| % US population in poverty in 2001 | 12.7 (5.3) | 15.9 (6.1) | 15.1 (6.4) |
| % states allowing NP to practice and/or prescribe | 47 | 62.5 | 25 |
| % of counties with MD Shortage | 11.8 (4.5) | 15.0 (3.7) | 18.1 (7.8) |
| % of Medicare population with Supplemental MediGap | 63.9 (8.2) | 56.9 (9.4) | 65.3 (11.6) |
| % Market Share Largest 3 Insurers in state, 2001 | 63.1 | 64 | 78.5 |
1We defined three insurance regulatory ‘regimes’ based on the combination of the two state insurance regulatory variables (R14, external review and R25, continuity of care.
Regime 1 (REG1) was defined as having both regulations in place (R14 = 1, R25 = 1). Regime 2 (REG2) was defined as having only one of these regulations in place (R14 = 1). Regime 3 (REG3) included all other states, which had neither regulation. See Table 7 for Regime Membership by States.