TABLE 3.
Univariable linear regression analysis of the associations between preoperative SBP dynamical metrics and the surgical risk scores.
| Variable | STS Morbidity/Mortality | EuroSCORE II | ||||||
|---|---|---|---|---|---|---|---|---|
| ß | 95% CI | p value | ß | 95% CI | p value | |||
| BPF (%) | 0.39 | 0.30 | 0.49 | < 0.001 | 0.34 | 0.24 | 0.44 | < 0.001 |
| Mean SBP (mmHg) | −0.03 | −0.15 | 0.08 | 0.546 | −0.03 | −0.14 | 0.08 | 0.556 |
| SD (mmHg) | −0.10 | −0.21 | 0.02 | 0.094 | −0.05 | −0.16 | 0.07 | 0.426 |
| CV | −0.07 | −0.18 | 0.04 | 0.218 | −0.03 | −0.14 | 0.09 | 0.653 |
| ARV (mmHg) | 0.19 | 0.10 | 0.28 | < 0.001 | 0.18 | 0.08 | 0.28 | < 0.001 |
| DFA ⍺1 | −0.47 | −0.56 | −0.38 | < 0.001 | −0.44 | −0.52 | −0.35 | < 0.001 |
The values shown are the regression coefficients (ß) and 95% CIs, for standardized variables. Statistically significant p values are highlighted in bold. Abbreviations: ARV, average real variability; BPF, blood pressure fragmentation; CI, confidence interval; CV, coefficient of variation; DFA, detrended fluctuation analysis; EuroSCORE, European System for Cardiac Operative Risk Evaluation; LOS, length of stay; SBP, systolic blood pressure; SD, standard deviation; and STS, Society of Thoracic Surgeons.