| SBA group N = 19,868 | SAA group N = 7924 | P value |
---|---|---|---|
Demographic | |||
 Age in yr, medians (IQR) | 60 (47–70) | 61(49–72) | < 0.001 |
 male (%) | 12,477 (62.8%) | 4938 (62.3%) | 0.443 |
Department distribution | |||
 Intensive Care Unit | 1582 (8.0%) | 499 (6.3%) | < 0.001 |
 Surgery departments | 8760 (44.1%) | 3873 (48.9%) | < 0.001 |
 Internal departments | 8849 (44.5%) | 3114 (39.3%) | < 0.001 |
 Others | 677 (3.4%) | 428 (5.5%) | < 0.001 |
Distribution of Clinical specimens | |||
 Respiratory specimens a | 7351 (37.0%) | 3162 (39.9%) | < 0.001 |
 Blood | 4229 (21.3%) | 1196 (15.1%) | < 0.001 |
 Body fluid specimens b | 1495 (7.5%) | 1131 (14.3%) | < 0.001 |
 Urine | 4311 (21.7%) | 947 (12.0%) | < 0.001 |
 Stool | 403 (2.0%) | 297 (3.7%) | < 0.001 |
 Other specimens c | 2079 (10.5%) | 1191 (15.0%) | < 0.001 |
Culture positive rate | |||
 Culture positive, n (%) | 5650 (28.4%) | 2014 (25.4%) | < 0.001 |
 Polymicrobial result, n (%)d | 864 (15.3%) | 320 (15.9%) | 0.525 |