Table 1.
Likelihood of Scheduling Primary Care Appointments With Advanced Practitioners
| Coefficient (Percentage Points) | P Value | |
|---|---|---|
| Federally Qualified Health Center | 8.52 | <.001 |
| Accountable care organization | 0.01 | .990 |
| Herfindahl-Hirschman index | 3.55 | .442 |
| Black, % | −0.21 | <.001 |
| Hispanic, % | −0.16 | .003 |
| Other, % | −0.10 | .322 |
| Median income | −0.21 | .002 |
| Unemployment rate | 0.10 | .811 |
| Urban, % | −0.03 | .443 |
| GA | 4.73 | .060 |
| IA | 4.49 | .127 |
| IL | 2.25 | .431 |
| MA | 8.71 | .007 |
| MT | 1.80 | .580 |
| NJ | 3.02 | .332 |
| OR | 12.73 | .001 |
| PA | −0.34 | .989 |
| TX | 8.18 | .014 |
| 2014 | 3.41 | .002 |
| 2016 | 5.10 | <.001 |
AP = advanced practitioner; FQHC = Federally Qualified Health Center; GA = Georgia; IA = Iowa; IL = Illinois; MA = Massachusetts; MT = Montana; NJ = New Jersey; OR = Oregon; PA = Pennsylvania; TX = Texas; US = United States.
Note: Linear regression analysis with county-clustered standard errors. The outcome variable is whether an appointment was scheduled with an AP, so coefficients represent percentage points rather than odds ratios. For interpretation, patients were 8.5 percentage points more likely to schedule an AP appointment at an FQHC. Characteristics are from the SK&A Office-Based Physician Database, Area Health Resource File, and US Census. Among states, Arkansas was omitted.