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Table 2 Autoregressive model for total antimicrobial use per month measured in defined daily doses per 1000 patient days for intervention and control intensive care units.

From: Differential outcome of an antimicrobial stewardship audit and feedback program in two intensive care units: a controlled interrupted time series study

Unit Baseline level Baseline trend Change in level (standard error) p-value Change in trend (standard error) p-value
TNICU 1427 1 −375 (94) 0.0009 −9 (15) 0.56
MSICU 1626 10 297(249) 0.25 −30 (35) 0.40
CVICU 1009 −3 169(177) 0.35 −12 (25) 0.63
CICU 591 −7 454 (128) 0.0023 −50 (19) 0.017
  1. TNICU, trauma and neurosurgery intensive care unit; MSICU, medical surgical intensive care unit; CVICU, cardiovascular intensive care unit; CICU, cardiac intensive care unit.