TABLE 2.
Demographics and clinical characteristics in the discovery and validation sets computed with microarray data sampled at day 1 following study enrolment.
| Discovery set (n = 1007) |
Validation set (n = 430) |
P-value | |
| Age [mean (SD)] | 52.09 (26.35) | 49.79 (26.83) | 0.138 |
| Gender (n,%) | 0.142 | ||
| Female | 419 (41.6) | 189 (44.0) | |
| Male | 566 (56.2) | 225 (52.3) | |
| NA | 22 (2.2) | 16 (3.7) | |
| Infection setting (n,%) | 0.133 | ||
| Community-associated | 685 (68.0) | 313 (72.8) | |
| Healthcare-associated | 69 (6.9) | 30 (7.0) | |
| NA | 253 (25.1) | 87 (20.2) | |
| Microbiology (n,%) | 0.972 | ||
| Viral sepsis | 79 (7.8) | 33 (7.7) | |
| bacterial sepsis | 143 (14.2) | 63 (14.7) | |
| NA | 785 (78.0) | 334 (77.7) | |
| Ethnic background (n,%) | 0.976 | ||
| Asian | 46 (4.6) | 19 (4.4) | |
| Black | 17 (1.7) | 6 (1.4) | |
| Latino | 13 (1.3) | 7 (1.6) | |
| White | 52 (5.2) | 21 (4.9) | |
| NA | 879 (87.3) | 377 (87.7) | |
| Platform (n,%) | 0.708 | ||
| Affymetrix | 552 (54.8) | 226 (52.6) | |
| Agilent | 66 (6.6) | 28 (6.5) | |
| Illumina | 389 (38.6) | 176 (40.9) | |
| Survival (n,%) | 816 (81.0) | 349 (81.2) | > 0.999 |
NA indicates values missing in the original studies.