TABLE 4.
Within‐physician organization racial and ethnic disparities, by health system affiliation status among measures associated with a total disparity
| Comparison and measure | Within‐PO disparity | Absolute Difference | Smaller disparity (P < .05) | |
|---|---|---|---|---|
| Affiliated POs | Nonaffiliated POs | |||
| Black‐White | ||||
| Diabetes medication adherence, % | 9.3 | 7.8 | 1.4 | Neither |
| Antidepressant medication adherence, % | 14.1 | 13.3 | 0.8 | Neither |
| Follow‐up after ED visit, % | 5.9 | 4.3 | 1.6 | Nonaffiliated POs |
| Follow‐up after hospitalization for mental illness, % | 9.8 | 9.1 | 0.3 | Neither |
| Hispanic‐White | ||||
| Breast cancer screening, % | 5.9 | 5.3 | 0.6 | Nonaffiliated POs |
| Diabetes eye examination, % | 5.9 | 7.0 | 1.1 | Neither |
| Diabetes medication adherence, % | 10.1 | 10.9 | 0.9 | Neither |
| Antidepressant medication adherence, % | 22.4 | 25.0 | 2.6 | Neither |
| Follow‐up after hospitalization for mental illness, % | 3.2 | 2.1 | 0.7 | Neither |
| API‐White | ||||
| Diabetes eye examination, % | 4.3 | 6.0 | 1.7 | Neither |
| Antidepressant medication adherence, % | 13.5 | 17.0 | 3.6 | Neither |
| Emergency department visits per 100 beneficiaries | 4.3 | 6.0 | 1.7 | Neither |
The rows in the table correspond to racial or ethnic comparisons associated with substantively important overall disparities reported in Table 2. The absolute value of the difference in within‐PO disparities between POs affiliated with health systems and nonaffiliated POs is estimated using an interaction term. All results are statistically significant at P < .05 after adjusting for multiple comparisons with the exception of those indicated by the word “Neither” in the far right column. A weighted average of the stratified differences reported in this table might differ from the mean within‐PO absolute difference reported in Table 3 because the stratified differences are estimated using recycled predictions based on a model containing an interaction term.