Table 3.
Results of Cox Proportional Hazard Analyses for All-Cause Mortality
| Events in Impaired Response | Events in Unimpaired Response | Hazard Ratio (95% CI) | p | |
|---|---|---|---|---|
| Initial SBP drop | 11/27 (40.7%) | 9/28 (32.1%) | 1.4 (0.5–3.6) | .506 |
| Initial DBP drop | 12/27 (44.4%) | 8/28 (28.6%) | 1.6 (0.6–3.9) | .328 |
| 1-min SBP recovery | 14/30 (46.7%) | 6/25 (24.0%) | 2.9 (1.1–7.8) | .039 |
| 1-min DBP recovery | 11/20 (55.0%) | 9/35 (25.7%) | 5.5 (1.9–16.1) | .002 |
| 5-min SBP recovery | 11/28 (39.3%) | 9/25 (36.0%) | 1.1 (0.5–2.8) | .794 |
| 5-min DBP recovery | 7/14 (50.0%) | 13/39 (33.3%) | 1.6 (0.6–4.2) | .337 |
Notes: CI = confidence interval; BP = blood pressure; DBP = diastolic blood pressure; SBP = systolic blood pressure. Adjusted for intervention group, age, and sex. For the initial drop, groups with a smaller or larger drop were compared (median split). For recovery, impaired recovery (<100% of sitting BP) was compared to unimpaired recovery (≥100% of sitting BP).