Evaluation of the Accuracy of Various Disks and Strips for Rapid Culture-Based Gonococcal Antimicrobial Susceptibility Screening Tests in China

Figures & data

Table 1 Categorical Agreements of Disk Diffusion Reagents for 6 Antimicrobials

	Ceftriaxone			Cefixime			Spectinomycin			Penicillin			Tetracycline			Ciprofloxacin
	Oxoid	Binhe	Kangtai	Oxoid	Binhe	Kangtai	Oxoid	Binhe	Kangtai	Oxoid	Binhe	Kangtai	Oxoid	Binhe	Kangtai	Oxoid	Binhe	Kangtai
Number tested	166	164	165	157	98	159	166	157	166	166	167	166	165	157	165	165	162	164
Categorical agreement (No.)	119	120	135	90	34	91	166	157	166	116	112	117	121	120	135	163	159	162
Categorical agreement rate (%)	71.7	73.2	81.8	57.3	34.7	57.2	100	100	100	70.0	67.1	70.5	73.3	76.4	81.8	97.8	98.1	98.7
Very major errors (No.)	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0
Major errors (No.)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Minor errors (No.)	47	39	50	67	64	68	0	0	0	50	54	49	44	36	30	2	3	2
Minor error rate (%)	28.3	23.8	30.3	42.7	65.3	42.8	0.0	0.0	0.0	30.1	32.3	29.5	26.7	22.9	18.2	1.2	1.9	1.2

Table 2 Categorical and Essential Agreements of Gradient Strip Reagents for 5 Antimicrobials

	Ceftriaxone		Azithromycin	Penicillin			Tetracycline		Ciprofloxacin
	Antu	Kangtai	Antu	Oxoid	Antu	Kangtai	Oxoid	Kangtai	Oxoid
Number tested	79	78	80	77	77	76	80	81	80
Essential agreement (No.)	69	45	56	50	48	52	57	42	73
Essential agreement rate (%)	87.3	57.7	70.0	64.9	62.3	68.4	71.3	51.9	91.3
Categorical agreement (No.)	77	75	69	48	50	51	54	34	76
Categorical agreement rate (%)	97.5	96.2	86.3	62.3	64.9	67.1	67.5	42.0	95.0
Very major errors (No.)	0	0	1	0	0	0	3	3	0
Major errors (No.)	0	0	0	0	0	0	0	0	0
Minor errors (No.)	2	3	10	29	27	25	23	44	4
Minor error rate (%)	2.5	3.8	12.5	37.7	35.1	32.9	28.8	54.3	5.0