TABLE 3—
Comparison of Systolic Blood Pressure, Diastolic Blood Pressure, and Mean Arterial Pressure in African American and White Individuals Across Low and High Education With t Tests: US Family Blood Pressure Program, 1996–2000
| African Americans |
Whites |
|||||||
| ≤ High-School Degree | > High-School Degree | Diff | t Value (P) | ≤ High-School Degree | > High-School Degree | δ | t Value (P) | |
| No. | 960 | 644 | … | … | 560 | 666 | … | … |
| Mean systolic BP ±SD (95% CI) | 136.2 ±23.08 (134.8, 137.7) | 131.0 ±20.17 (129.5, 132.6) | 5.190 | 4.64 (< .001) | 127.6 ±21.13 (125.8, 129.3) | 125.3 ±19.69 (123.8, 126.8) | 2.24 | 1.91 (.056) |
| Mean diastolic BP ±SD (95% CI) | 75.4 ±12.3 (74.6, 76.2) | 75.0 ±11.2 (74.1, 75.9) | 0.436 | 0.73a (.463) | 70.5 ±10.6 (69.7, 71.4) | 71.6 ±11.1 (70.8, 72.5) | −1.08 | −1.73 (.085) |
| Mean arterial pressure ±SD (95% CI) | 95.70 ±14.5 (94.8, 96.6) | 93.7 ±12.8 (92.7, 94.7) | 2.021 | 2.95a (.003) | 89.6 ±12.8 (88.5, 90.6) | 89.5 ±12.8 (88.6, 90.5) | 0.028 | 0.04 (.97) |
Note. BP = blood pressure; δ = mean difference in blood pressure between racial groups; CI = confidence interval.
a
Satterthwaite method used as variances were not equal.