Table 2.
Unadjusted rates | Adjusted rates* | |||||
---|---|---|---|---|---|---|
Intervention | Control | Difference (95% CI) | P-value | Difference (95% CI) | P-value | |
All patients | 969/3,054 (31.7%) | 857/3,676 (23.3%) | 8.4% (6.3–10.6) | <0.001 | 8.1% (5.1–11.2) | <0.001 |
Physician-Connected | 628/1,689 (37.2%) | 566/2,002 (28.3%) | 8.9% (5.9–11.9) | <0.001 | 8.0% (4.0–12.3) | <0.001 |
Practice-Connected | 341/1,365 (25.0%) | 291/1,674 (17.4%) | 7.6% (4.7–10.5) | <0.001 | 8.1% (4.9–11.7) | 0.01 |
*Adjusted rates and p-values were obtained from multiple logistic regression models comparing intervention and control groups controlling for patient age, race/ethnicity, insurance status, English language proficiency, practice type (health center vs non-health center), and number of months since last practice visit using cluster analysis with generalized estimating equations methods. The “All Patients” model also adjusted for patient-provider connectedness. Models were adjusted to the covariate levels that produced the same adjusted and unadjusted rates in the control group.