Table 3. Physiologic parameters of shock groups.
| Mild (n = 17) |
Moderate (n = 30) |
Severe† (n = 4) |
||||
|---|---|---|---|---|---|---|
| mean ± stdev | median (25th, 75th quartiles) | mean ± stdev | median (25th, 75th quartiles) | mean ± stdev | median (25th, 75th quartiles) | |
| Hospital length of stay (days) | 7.5 ± 9.4 | 3.0 (2.0, 9.0) | 13.6 ± 19.1 | 7.5 (4.0, 12.0) | 19.5 ± 28.8 | 6.0 (2.8, 22.8) |
| ICU length of stay (days) | 2.0 ± 3.0 | 0 (0, 4.0) | 3.2 ± 3.9 | 2 (0, 3.8) | 18.0 ± 30.7 | 3.0 (2.8, 18.2) |
| Time on mechanical ventilation (days) | 1.1 ± 1.9 | 0 (0, 2.0) | 2.0 ± 3.5 | 0 (0, 2.0) | 18.0 ± 30.7 | 3.0 (2.8, 18.3) |
| Maximum HR (bpm) |
88.1 ± 15.1 | 88 (78, 92) | 107 ± 22.9* | 111 (94, 122) | 111.2 ± 35.8 | 111 (77, 128) |
| Minimum SBP (mm Hg) |
116.7 ± 18.3 | 111 (104, 133) | 104 ± 16.2* | 101 (92, 115) | 83.0 ± 17.0 | 85 (66, 93) |
| Lactate (mM) |
1.6 ± 0.7 | 2.0 (1.6, 2.9) | 3.5 ± 2.7* | 2.0 (1.7, 3.9) | 10.2 ± 6.1 | 5.0 (2.8, 7.2) |
| Shock Index |
0.77 ± 0.16 | 1.0 (0.62, 0.87) | 1.04 ± 0.21* | 1.0 (0.91, 1.21) | 1.43 ± 0.75 | 1.0 (0.93, 1.52) |
| Minimum SpO2 (%) |
96.4 ± 2.8 | 97 (95, 98) | 97.5 ± 2.7 | 98 (98, 100) | 96.0 ± 4.9 | 97 (91, 100) |
| MOx (%) |
79.4 ± 21.2 | 90.2 (69.9, 96.1) | 48.6 ± 28.6* | 39.9 (24.8, 69.3) | 42.2 ± 4.7 | 43.1 (41.2, 44.0) |
*Means significantly different from mild group, p < 0.05.
stdev, standard deviation; ICU, intensive care unit; HR, heart rate; SBP, systolic blood pressure; SpO2, arterial saturation by pulse oximetry; MOx, muscle oxygenation.
†Statistical analysis not performed on severe group due to small number of subjects.