Table 3.
Parameters | Univariate analysis | Multivariate analysis | ||
---|---|---|---|---|
OR (95% CI) | p value | aOR (95% CI) | p value* | |
Capillary density 4–6 microns | 1.03 (1.01–1.06) | < 0.01 | 1.03 (1-01-1.05) | < 0.01 |
Capillary density 10–20 microns | 1.01 (1.00-1.01) | 0.06 | 1.01 (0.99–1.02) | 0.08 |
Absolute vascular flow | 1.25 (1.10–1.49) | < 0.01 | 1.31 (1.08–1.58) | < 0.01 |
MVHS | 0.97 (0.84–1.13) | 0.77 | 0.98 (0.84–1.14) | 0.82 |
PBR | 1.25 (0.63–2.48) | 0.52 | 1.20 (0.57–2.51) | 0.86 |
PBR flow corrected | 1.11 (0.55–2.22) | 0.77 | 1.13 (0.53–2.35) | 0.74 |
Worst PBR | 1.28 (0.79–2.09) | 0.31 | 1.18 (0.72–1.94) | 0.51 |
MVHS: MicroVascular Health Score (the ratio between the PBR and relative vascular flow). PBR: perfused boundary region. CI: confidence interval. OR odds ratio. The adjusted odds ratio (aOR) was calculated for confounding variables (PIM-2, age and vasoactive index score). A lactate-albumin ratio greater than 0.5 was considered elevated. *Logistic regression using the forward method and omnibus test.