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Procalcitonin categories and antibiotic use
| Procalcitonin category | Antibiotic use category | 6 h |
Day 3 |
Day 5 |
|||
|---|---|---|---|---|---|---|---|
| Experimental arm (n=27) | Controls (n=26) | Experimental arm (n=24) | Controls (n=21) | Experimental arm (n=19) | Controls (n=21) | ||
| <0.25 µg/l | Yes | 4 | 2 | 2 | 7 | 5 | 9 |
| No | 2 | 0 | 3 | 2 | 3 | 2 | |
| Total | 6 | 2 | 5 | 9 | 8 | 11 | |
| 0.25–<1 µg/l | Yes | 0 | 5 | 4 | 4 | 1 | 5 |
| No | 1 | 0 | 2 | 2 | 2 | 1 | |
| Total | 1 | 5 | 6 | 6 | 3 | 1 | |
| 1–<5 µg/l | Yes | 12 | 12 | 8 | 4 | 5 | 2 |
| No | 1 | 4 | 2 | 1 | 1 | 1 | |
| Total | 13 | 16 | 10 | 5 | 6 | 3 | |
| >5 µg/l | Yes | 7 | 3 | 3 | 1 | 1 | 0 |
| No | 0 | 0 | 0 | 0 | 1 | 1 | |
| Total | 7 | 3 | 3 | 1 | 2 | 1 | |
