Percentages of Patients Whose Care Met Quality Standards During the 3-Year Observation Period
| EHR Practices (n=16) | Non-EHR Practices (n=26) | EHR vs Non-EHR Practices | All Practices (N=42) | ||||
|---|---|---|---|---|---|---|---|
| Quality Measure and Time Point | % of Patients, Mean (SD) | F2,45 (P Value) | % of Patients, Mean (SD) | F2,75 (P Value) | F1,2222 (P Value) | % of Patients, Mean (SD) | F2,123 (P Value) |
| Processes of care (3 of 5 criteria met) | |||||||
| Baseline | 45.1 (16.8) | 0.44 (.65) | 55.5 (24.9) | 0.40 (.67) | 0.02 (.98) | 51.5 (22.5) | 0.86 (.43) |
| 1-Year follow-up | 45.0 (27.7) | 57.2 (22.3) | 52.5 (24.9) | ||||
| 2-Year follow-up | 51.1 (19.8) | 60.7 (20.9) | 57.0 (20.8) | ||||
| Treatment (all criteria met) | |||||||
| Baseline | 38.2 (14.3) | 2.81 (.07) | 47.2 (24.9) | 1.28 (.28) | 0.59 (.55) | 43.8 (16.5) | 3.26 (.04) |
| 1-Year follow-up | 42.2 (18.4) | 47.3 (20.1) | 45.4 (19.4) | ||||
| 2-Year follow-up | 48.6 (13.5) | 53.5 (19.8) | 51.7 (17.6) | ||||
| Outcomes (2 of 3 targets met) | |||||||
| Baseline | 44.8 (15.3) | 0.71 (.50) | 52.5 (15.0) | 4.32 (.02) | 0.30 (.74) | 49.6 (15.4) | 4.68 (.01) |
| 1-Year follow-up | 44.8 (15.3) | 52.8 (16.3) | 49.8 (16.2) | ||||
| 2-Year follow-up | 49.9 (16.0) | 61.9 (15.2) | 57.4 (16.4) | ||||
| Outcomes (all targets met) | |||||||
| Baseline | 10.3 (6.4) | 2.21 (.12) | 15.1 (9.7) | 3.53 (.03) | 0.08 (.93) | 13.3 (8.8) | 9.49 (.003) |
| 1-Year follow-up | 11.1 (7.8) | 15.3 (11.2) | 13.7 (10.1) | ||||
| 2-Year follow-up | 15.9 (9.4) | 21.5 (12.7) | 19.4 (11.8) | ||||
EHR=electronic health record.
Notes: F statistics and P values were calculated using hierarchical models with pseudo-likelihood estimation to determine whether changes in rates were significant for either EHR or non-EHR practices over time or whether rates of changes differed between the 2 groups over time. Results are unadjusted for covariates.