Table 1.
Participant and sample characteristics for all study phases.
| Phases 1 and 2 (body site) | Phase 3 (dressing) | |
|---|---|---|
| Participants by recruitment sites | ||
| Medical/surgical ward patient | 24 (41) | 10 (28) |
| Intensive care patient | 24 (41) | 26 (72) |
| Healthy volunteer | 10 (17) | – |
| Total | 58 (100) | 36 (100) |
| Samples by body parts | ||
| Base of neck | 58 (24) | – |
| Chest | 58 (24) | – |
| Mid-neck | 58 (24) | – |
| Upper arm | 58 (24) | – |
| Lower arm | 9 (4) | – |
| Around dressing | – | 36 (50) |
| Under dressing | – | 36 (50) |
| Total | 241 (100) | 72 (100) |
| CFU count | 5 (0–93)* | 0 (0–12)* |
| 0 | 61 (25) | 37 (51) |
| 1–29 | 98 (41) | 25 (35) |
| 30–299 | 39 (16) | 4 (6) |
| ⩾ 300 | 43 (18) | 6 (8) |
| Total | 241 (100) | 72 (100) |
| Length of hospital stay (days) †‡ | 10 (7–17)* | 9.5 (7.5–16.5) |
| Length of device dwell (days)‡ | – | 6 (5–7.5) |
Values are presented as n (%) unless otherwise noted.
*
Median (25th and 75th percentiles).
†
Intensive care and hospital ward participants only.
‡
Per participant analysis.
CFU, colony-forming unit.