Table 2.
Comparative analysis between lactate values from different sites, in subgroups
| Variables | Present | Absent |
|---|---|---|
| Septic shock | ||
| Lper | -3.2 ± 4.5 (-12.1 to 5.4) | -2.6 ± 3.9 (-10.2 to 5.1) |
| Lcen | 0.4 ± 2.1 (-3.8 to 4.5) | -0.4 ± 23.0 (-6.2 to 5.5) |
| Respiratory dysfunction | ||
| Lper | -3.6 ± 4.4 (-12.3 to 5.0) | -1.6 ± 3.4 (-8.4 to 5.1) |
| Lcen | -0.4 ± 2.0 (-4.4 to 3.5) | 0.8 ± 3.3 (-5.7 to 7.3) |
| SvO2 < 70% | ||
| Lper | -1.7 ± 4.2 (-10.0 to 6.5) | -2.9 ± 4.0 (-10.7 to 4.8) |
| Lcen | 0.5 ± 3.9 (-7.1 to 8.1) | -0.2 ± 2.2 (-4.6 to 4.2) |
| Overall | ||
| Lper | -3.2 ± 4.9 (-12.8 to 6.4) | |
| Lcen | -0.8 ± 5.9 (-12.5 to 10.8) | |
Lper = peripheral venous lactate; Lcen = central venous lactate; SvO2 = venous oxygen saturation. Bland-Altman results are expressed as bias ± standard deviation (limits of concordance), all of them compared with arterial lactate.