Table.3.

Agreements within and between susceptibility assays of Nocardia spp. isolates with TMP-SMX

Agreement	aBroth Microdilution Method						Disk Diffusion
	Gold Standard		Resazurin		OD
	± 1	± 2	± 1	± 2	± 1	± 2
Essential
Intra-reading	82.0	97.0	73.1	88.5	81.8	93.9	dn.a.
bInter-reading	―	―	71.7	89.8	75.0	88.6	dn.a.
b,cPearson’s r	―	―	0.50	0.42	0.36	0.44	dn.a.
(95% CI)			(0.36–0.62)	(0.26–0.55)	(0.20–0.45)	(0.30–0.57)
Categorical
Intra-reading	95.5	88.5	86.2	86.2	99.2	97.0	100.0
bInter-reading	―	―	81.1	91.3	91.7	93.9	97.7
bVery Major Errors	―	―	0.0	0.0	8.33	6.06	2.27
bMajor Errors	―	―	18.9	8.66	0.0	0.0	0.0

^aBMD method concordant results considering ±1 or ± 2 two-fold dilutions

^bCompared with the Gold Standard BMD method

^cP < 0.0001 for all comparisons

^dNot applicable