Interrupted Time Series Analysis for Mean Systolic and Diastolic Blood Pressure
| Blood Pressure, mm Hg (95% CI) | ||||
|---|---|---|---|---|
| Parameter | All Patients | White | Black | South Asian |
| Systolic | ||||
| Pre-QOF trend | −0.03 (−0.31 to 0.25) | −0.50 (−0.93 to −0.08)a | 0.31 (−0.20 to 0.83) | 0.42 (−0.16 to 1.01) |
| Level change post-QOF | −1.95 (−2.87 to −1.02)b | −2.12 (−3.48 to −0.77)b | −2.32 (−4.03 to −0.61)b | −1.08 (−2.97 to 0.08) |
| Post-QOF trend | −1.04 (−1.42 to −0.64)b | −0.21 (−0.80 to 0.37) | −1.68 (−2.41 to −0.95)b | −1.79 (−2.60 to −0.98)b |
| Diastolic | ||||
| Pre-QOF trend | −0.84 (−1.00 to −0.67)b | −0.69 (−0.93 to −0.44)b | −0.84 (−1.14 to −0.54)b | −1.06 (−1.41 to −0.72)b |
| Level change post-QOF | −0.51 (−1.05 to 0.01) | −1.01 (−1.79 to −0.24)a | −0.33 (−1.32 to 0.65) | 0.20 (−0.90 to 1.30) |
| Post-QOF trend | 0.19 (−0.03 to 0.41) | 0.10 (−0.23 to 0.43) | 0.12 (−0.30 to 0.54) | 0.40 (−0.07 to 0.87) |