Variable | Healthy controls | No shock | Shock | p value |
---|---|---|---|---|
n = 32 | n = 33 | n = 29 | ||
Mean age (years) ± SD | 40 ± 16 | 56 ± 18 | 58 ± 21 | 0.0002 |
Male gender (%) | 15 (44) | 15 (45) | 22 (76) | 0.03 |
White race (%) | 28 (82) | 19 (58) | 16 (55) | 0.01 |
Source of infection (%) | N/A | Â | Â | 0.6 |
 Urinary tract |  | 11 (33) | 9 (31) |  |
 Pneumonia |  | 9 (27) | 12 (41) |  |
 Intravascular device |  | 5 (15) | 2 (7) |  |
 Other |  | 7 (21) | 6 (21) |  |
Organism (%) | N/A | Â | Â | 0.28 |
 Gram-negative bacteria |  | 12 (36) | 11 (38) |  |
 Gram-positive bacteria |  | 5 (15) | 3 (10) |  |
 Unknown |  | 11 (33) | 6 (21) |  |
 Other |  | 4 (12) | 9 (31) |  |
Mechanical ventilation (%) | N/A | 12 (36) | 14 (48) | 0.28 |
ARDS (%) | N/A | 5 (15Â %) | 9 (7Â %) | 0.22 |
Acute kidney injury (%) | N/A | 20 (61Â %) | 18 (62Â %) | 0.79 |
Mean APACHE II score ± SD | N/A | 20.5 ± 7.4 | 23.5 ± 8.3 | 0.09 |
Median ICU LOS in days (IQR) | N/A | 2 (7) | 4 (4) | 0.16 |
Median hospital LOS in days (IQR) | N/A | 7 (11) | 7 (12) | 0.64 |
Death (%) | N/A | 3 (9) | 9 (31) | 0.03 |