As can be seen in Figure 1, the lowest unadjusted rates of adverse events are observed when the systolic blood pressure is in the 120-140 mmHg range. Significantly higher adverse events occurred with blood pressures outside this range. Figure 1 shows the U-shaped relationship between adverse post hospital outcomes and the final systolic blood pressure. There is a steep increase in 30-day readmissions or death when the final systolic blood pressure is less than a 100 mmHg or higher than 160 mmHg. This holds true when the inpatient deaths are excluded.