Unadjusted in-hospital mortality as a function of initial systolic BP category in patients older than 70 years of age
| Initial systolic blood pressure (mmHg) before ED treatment | ||||
| ≤100 | 101–120 | 121–139 | ≥140 | |
| Patients, n (821) | 96 | 154 | 212 | 359 |
| Absolute mortality, n | 20 | 22 | 18 | 17 |
| Mortality per category, % (95% CI) | 20.8 (16.7 to 24.9) | 14.3 (11.5 to 17.1) | 8.5 (6.6 to 10.4) | 4.7 (3.6 to 5.8) |
With every increase in systolic blood pressure category, unadjusted mortality almost linearly decreases. In-hospital mortality is represented as n (%) with 95% CI. The number inside the brackets indicates the number of patients included in the analysis.