Table 1. Demographics of Subject Groups.
| Healthy | SIRS | Sepsis | Severe Sepsis | Septic Shock | |
| Number | 42 | 21 | 42 | 17 | 26 |
| Male (%) | 21 (50.0) | 12 (57.1) | 19 (45.2) | 8 (47.1) | 16 (61.5) |
| Age (Years) | 60.1±16.5 | 62.8±20.4 | 56.6±19.6 | 63.9±21.4 | 68.6±13.0 |
| Primary Site of Infection | |||||
| Respiratory Tract (%) | - | - | 27 (64.3) | 10 (58.8) | 10 (38.5) |
| Urinary Tract (%) | - | - | 7 (16.7) | 4 (23.5) | 6 (23.1) |
| GI Tract (%) | - | - | 3 (7.1) | 0 (0) | 6 (23.1) |
| Other (%) | - | - | 5 (11.9) | 3 (17.6) | 4 (15.4) |
| Comorbidities | |||||
| Diabetes Mellitus (%) | 0 (0) | 12 (57.1) | 4 (9.5) | 4 (23.5) | 9 (34.6) |
| COPD (%) | 0 (0) | 3 (14.3) | 19 (45.2) | 2 (11.8) | 4 (15.4) |
| Congestive Heart Failure (%) | 0 (0) | 2 (9.5) | 1 (2.4) | 0 (0) | 2 (7.7) |
| Active Cancer (%) | 0 (0) | 0 (0) | 1 (2.4) | 0 (0) | 3 (11.5) |
| 28 Day Mortality (%) | - | 2 (9.5) | 1 (2.4) | 0 (0) | 3 (11.5) |
| SOFA Score | - | 3 (2, 7) | 3 (1.25, 3) | 5 (4, 6) | 9 (6, 12) |
| Hospital LOS (days) | - | 6 (4.5, 14.5) | 5 (2, 8.5) | 9 (5.5, 19) | 14 (2.5, 43) |
COPD = Chronic Obstructive Pulmonary Disease; SOFA = Sepsis-relates Organ Failure Assessment; LOS = Length of Stay.