Table 3.

Effects of AST implementation in the pre- and post-AST periods.

Characteristic	Pre-AST n = 208 (Episodes)	Post-AST n = 311 (Episodes)	p-Value
Blood culture (2 sets) before starting antibiotics	96 (46.2)	268 (86.2)	<0.001 *
Blood culture positivity	36 (17.3)	89 (28.6)	0.003 *
Nursing record about antibiotics	7 (3.4)	33 (10.6)	0.002 *
Length of carbapenem therapy	8 (1.0–39.0)	8 (1.0–31.0)	0.542
Number of days not receiving carbapenem with <500 granulocytes	0 (0.0–180)	3 (0.0–431)	<0.001 *
30-day mortality	44 (21.2)	59 (19.0)	0.541
In-hospital mortality	58 (27.9)	82 (26.4)	0.703
Length of hospital stay	20.5 (1.0–228.0)	20.0 (1.0–383.0)	0.269
Gram-positive cocci	15 (7.2)	54 (17.4)	0.001 *

Number (%) or median (interquartile range). Abbreviations are as follows: AST, antimicrobial stewardship team. * p < 0.05.