Table 1. Description of the study cohorts.
| Reference cohort (n = 10) | Test cohort (n = 90) | ||
|---|---|---|---|
| Median age (min-max) | 70.0 (36–91) | 68.0 (19–90) | p = 0.3099 |
| Female sex | 5 (50%) | 47 (52.2%) | p = 0.8414 |
| ICU | 5 (50%) | 38 (42.2%) | p = 0.8713 |
| Respiratory support | |||
| none | 8 (80%) | 80 (89%) | p = 0.7141 |
| NIV | 1 (10%) | 5 (5.5%) | |
| IV | 1 (10%) | 5 (5.5%) | |
| CVC type | |||
| 3-lumen | 9 (90%) | 86 (96%) | p = 0.5654 |
| 4-lumen | 1 (10%) | 3 (3%) | |
| 5-lumen | 0 (0%) | 1 (1%) | |
| CVC insertion site | |||
| R internal jugular vein | 5 (50%) | 48 (53.3%) | p = 0.8312 |
| L internal jugular vein | 4 (40%) | 37 (41.1%) | |
| R subclavian vein | 0 (0%) | 2 (2.2%) | |
| L subclavian vein | 1 (10%) | 3 (3.3%) | |
| CVC insertion US guided | 7 (70%) | 74 (82.2%) | p = 0.6102 |
Abbreviations used: CVC: central venous catheter, ICU: intensive care unit, IMC: intermediate care unit, IV: invasive ventilation, L: left, NIV: non-invasive ventilation, R: right, US: ultrasound.