Table 3.
Prevalence of key study characteristics in patients with direct and 24-hr indirect intensive care unit (ICU) admissions
| Admission Characteristic | Direct admissions (n= 3,442) | 24-hr indirect admissions (n = 420) | P value§ |
|---|---|---|---|
| Severe sepsis, n (%) | 730 (21) | 101 (24) | 0.186 |
| Medical | 281 (26) | 68 (28. | 0.52 |
| Surgical | 449 (19) | 33 (18) | 0.92 |
| Evening admissions, n (%) | 539 (16) | 91 (22) | 0.0026 |
| Medical | 271 (26) | 58 (24) | 0.74 |
| Surgical | 268 (11) | 33 (18) | 0.008 |
| Weekend admissions, n (%) | 369 (11) | 71 (17) | <0.001 |
| Medical | 179 (17) | 36 (15) | 0.56 |
| Surgical | 190 (8.0) | 35 (19) | 0.0001 |
| Code blue, n (%) | 49 (1.4) | 16 (3.8) | <0.001 |
| Medical | 41 (3.9) | 13 (5.4) | 0.28 |
| Surgical | 8 (0.3) | 3 (1.7) | 0.037 |
| Rapid response call, n (%) | 183 (5.3) | 97 (23) | <0.0001 |
| Medical | 139 (13) | 73 (31) | <0.0001 |
| Surgical | 44 (1.8) | 24 (13) | 0.0001 |
Presence of admission characteristics in patients with direct and indirect ICU admissions. The first line of each category indicated the frequency in the whole population, with medical and surgical patients considered separately below.
§
P values indicate analysis of categorical variables using Fisher’s exact test.