Table 3.

Post-Intervention Analysis Comparing Low and Elevated Peak Procalcitonin Concentrations

Variable	Peak procalcitonin < 0.25 μg/l (n = 123)	Peak procalcitonin ≥ 0.25 μg/l (n = 16)	P value
Duration of total antibiotics, mean (SD), days	2.7 (2.8)	5.3 (3.2)	0.01
Duration of IV antibiotics, mean (SD), days	1.8 (1.8)	2.7 (1.7)	0.06
Total antibiotic duration, n (%)
0 to 1 day	58 (47.2)	3 (18.7)
2 to 5 days	43 (35.0)	5 (31.3)
6 to 7 days	15 (12.2)	3 (18.8)
8 to 10 days	6 (4.9)	4 (25.0)
11 to 14 days	1 (0.7)	1 (6.2)
More than 14 days	0 (0)	0 (0)
Inpatient LOS, mean (SD), days	2.9 (1.9)	3.6 (2.8)	0.16
All-cause 30-day readmission, n (%)	22 (17.9)	1 (6.3)	0.47
Respiratory related 30-day readmission, n (%)	13 (10.6)	0 (0)	0.36

SD, Standard deviation; IV, intravenous; LOS, length of stay