Table 3. Adjusted Dispensing Outcomesa.
| Usual care | Nudge | |||
|---|---|---|---|---|
| Patient | Clinician | Combined | ||
| Unadjusted dispensing rates | ||||
| Preintervention, No./total No. (%) | 149/1876 (7.9) | 141/2022 (7.0) | 148/1723 (8.6) | 136/1752 (7.8) |
| Intervention, No./total No. (%) | 98/1032 (9.5) | 121/1181 (10.2) | 129/981 (13.1) | 162/937 (17.3) |
| Unadjusted difference in percentage points from pre- to postintervention (95% CI) | 1.6 (−0.3 to 3.4) | 3.3 (1.5 to 5.0) | 4.6 (2.5 to 6.6) | 9.5 (7.4 to 11.7) |
| Main adjusted model b | ||||
| Difference in percentage points relative to usual care (95% CI) | NA | 1.0 (−0.7 to 2.6) | 3.6 (1.5 to 5.7) | 7.2 (5.2 to 9.2) |
| P value relative to usual care | NA | .29 | .07 | <.001 |
| Fully adjusted model c | ||||
| Difference in percentage points relative to usual care (95% CI) | NA | 0.8 (−1.0 to 2.5) | 3.8 (1.6 to 6.2) | 7.3 (5.2 to 9.2) |
| P value relative to usual care | NA | .33 | .07 | <.001 |
Abbreviation: NA, not applicable.
a
Statin dispensing within 30 days after the primary care visit.
b
Adjusted for study arm, calendar month for the intervention period, preintervention statin prescribing rates at the clinician level, and random effects at the clinician and practice level.
c
Also adjusted for patient age, sex, race and ethnicity, insurance, annual household income, and Charlson Comorbidity Index.