Multiple linear regression models of different race/ethnicities for primary outcomes of mean change in systolic or diastolic blood pressure (SBP/DBP) from antihypertensive administration to first subsequent blood pressure measurement, adjusted for covariates
| Outcome | Predictor | Mean (95% CI) | P value |
| SBP change (mm Hg) | Race/ethnicity | <0.001 | |
| Black versus Hispanic | 9.90 (4.91 to 14.89) | <0.001 | |
| Black versus white | 2.10 (−3.81 to 8.01) | 0.486 | |
| Hispanic versus white | −7.80 (−13.60 to 2.00) | 0.008 | |
| DBP change (mm Hg) | Race/ethnicity | 0.036 | |
| Black versus Hispanic | 3.60 (0.18 to 7.02) | 0.039 | |
| Black versus white | −0.97 (−5.01 to 3.07) | 0.638 | |
| Hispanic versus white | −4.57 (−8.53 to 0.61) | 0.024 |
P value, significance set to <0.05. Bolded items highlight significant p-values.