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Table 2 Agreements and errors for AST of GPC and GNR for the direct and routinely used Phoenix method

From: Evaluation of direct inoculation of the BD PHOENIX system from positive BACTEC blood cultures for both Gram-positive cocci and Gram-negative rods

  Direct vs routinely used method Direct method after discrepancy analysis Routine method after discrepancy analysis
GPC (n = 84)    
Categorical agreement 93.1% 95.4% 97.3%
Minor errors 1.7% 1.1% 0.7%
Major errors 4.2% 3.1% 0.8%
Very major errors 0.9% 0.4% 1.6%
GNR (n = 49)    
Categorical agreement 97.6% 99.0% 98.4%
Minor errors 1.9% 0.7% 1.4%
Major errors 0.1% 0.0% 0.1%
Very major errors 0.4% 0.3% 0.1%