TABLE 2.
Odds of Not Filling a Prescription by 30 Days by Sociodemographic and Area-Level Characteristics
| Characteristic | Model 1, OR (95% CI)a | Model 2, OR (95% CI)b | Model 3, OR (95% CI)c |
|---|---|---|---|
| Age, y | 1.04 (1.03–1.04) | 1.04 (1.03–1.04) | 1.04 (1.03–1.04) |
| Sex | |||
| Female | Reference | Reference | Reference |
| Male | 1.10 (1.07–1.14) | 1.10 (1.07–1.14) | 1.11 (1.07–1.14) |
| Payment mechanism | |||
| Private | Reference | Reference | Reference |
| Public | 1.36 (1.32–1.40) | 1.24 (1.20–1.28) | 1.22 (1.18–1.26) |
| Discount card | 1.28 (1.11–1.47) | 1.27 (1.10–1.47) | 1.27 (1.10–1.47) |
| Quintiles of zip code percentage below federal poverty level | |||
| Low | — | Reference | — |
| Low-medium | — | 0.93 (0.89–0.98) | — |
| Medium | — | 1.01 (0.96–1.06) | — |
| Medium-high | — | 1.120 (1.07–1.17) | — |
| High | — | 1.60 (1.52–1.69) | — |
| Quintiles of zip code percentage of households without access to a vehicle | |||
| Low | — | — | Reference |
| Low-medium | — | — | 0.99 (0.94–1.05) |
| Medium | — | — | 1.07 (1.01–1.13) |
| Medium-high | — | — | 1.13 (1.07–1.18) |
| High | — | — | 1.77 (1.68–1.87) |
OR, odds ratio; —, not applicable.
a
Model 1 included age, sex, and payer.
b
Model 2 included age, sex, payer, and quintiles as defined by percentage below the federal poverty level.
c
Model 3 included age, sex, payer, and quintiles as defined by zip code percentage of households without access to a vehicle.