Table 3.
Racial differences in mean (SE) stress reactivity and baseline cardiovascular and neuroendocrine measures as determined by multiple regression adjusting for education and baseline cardiovascular or neuroendocrine measure.
| African American | Non-Hispanic White | p | |
|---|---|---|---|
| SBP (mmHg) | |||
| Baseline | 122.4 (1.7) | 117.2 (1.5) | .022 |
| Reactivity | 21.4 (1.7) | 24.0 (1.4) | .257 |
| DBP (mmHg) | |||
| Baseline | 70.0 (1.2) | 71.3 (1.1) | .418 |
| Reactivity | 14.6 (1.1) | 14.5 (0.9) | .960 |
| HR (bpm) | |||
| Baseline | 68.0 (1.4) | 66.4 (1.3) | .412 |
| Reactivity | 12.4 (1.1) | 15.4 (0.9) | .040 |
| CI (l/min) | |||
| Baseline | 3.4 (0.1) | 3.2 (0.1) | .283 |
| Reactivity | 0.8 (0.1) | 1.0 (0.1) | .127 |
| SVI (ml/beat per M2) | |||
| Baseline | 50.5 (2.1) | 48.4 (1.8) | .478 |
| Reactivity | 2.6 (0.9) | 3.1 (0.8) | .693 |
| VRI (dyne s cm−5 M2) | |||
| Baseline | 2277.7 (112.0) | 2365.0 (98.0) | .566 |
| Reactivity | −139.9 (50.4) | −210.4 (44.1) | .305 |
| Norepinephrine (pg/ml) | |||
| Baseline | 424.0 (22.8) | 446.4 (20.0) | .469 |
| Reactivity | 40.9 (15.9) | 53.3 (13.9) | .565 |
| AUCg (pg/ml*min) | 7636.2 (370.4) | 8091.3 (324.1) | .366 |
| Cortisol (pg/ml) | |||
| Baseline | 6.9 (0.6) | 8.4 (0.5) | .044 |
| Reactivity | −0.4 (0.3) | 0.3 (0.3) | .145 |
| AUCg (pg/ml*min) | 262.5 (22.4) | 335.0 (19.6) | .019 |
| Beta-endorphins (pmol/L) | 0.1 (0.0) | 0.1 (0.0) | .489 |