Table 2. Estimated Percentage Point Difference in Cost-Related Medication Nonadherence Among Older Adults With Diabetes, by Participation in SNAP.
| Variable (n = 1301) | Percentage Point Difference (95% CI)a | P Value |
|---|---|---|
| Participation in SNAP, PATT | −5.3 (−10.0 to −0.5) | .03 |
| Age, y | ||
| 65-69 | 14.1 (7.0 to 21.2) | <.001 |
| 70-74 | 3.2 (−3.8 to 10.2) | .37 |
| Male sex | −6.5 (−11.4 to −1.6) | .009 |
| Non-Hispanic white | 0.4 (−4.8 to 5.7) | .87 |
| Hispanic | −12.0 (−16.4 to −7.5) | <.001 |
| US citizen | −0.8 (−18.3 to 16.7) | .93 |
| Single or living alone | −5.9 (−18.0 to 6.1) | .34 |
| Educational level, bachelor’s degree or higher | −2.8 (−10.2 to 4.5) | .45 |
| Residing in the South | −1.4 (−6.3 to 3.5) | .57 |
| Employed | 3.1 (−9.3 to 15.5) | .63 |
| Logarithm of per capita income | 0 (−4.3 to 4.3) | .99 |
| Fully food secure | −15.6 (−21.3 to −9.9) | <.001 |
| Fair or poor health status | 4.7 (−0.1 to 9.5) | .05 |
| Any functional limitation | −0.2 (−10.0 to 9.6) | .97 |
| Any prescription drug coverage | −7.3 (−14.9 to 0.3) | .06 |
| ≥$500 in out-of-pocket medical costs | 7.0 (1.5 to 12.5) | .01 |
Abbreviations: PATT, population average treatment effect on the treated; SNAP, Supplemental Nutrition Assistance Program.
a
Percentage point differences are the average marginal effects from a logistic model. Regression includes a constant and is weighted by the product of the propensity score weight and the survey weight.