Table 5.

Performance characteristics of the assessed FISH probes

Target organism	Sensitivity (%; absolute numbers)	Specificity (%; absolute numbers)	Positive predictive value (%; absolute numbers)	Negative predicitive value (%; absolute numbers)
S. aureus	96.4, 81/84	100.0, 450/450	100.0, 81/81	99.3, 450/453
Staphylococcus spp.	98.3, 515/524	100.0, 10/10	100.0, 515/515	52.6, 10/19
Micrococcus spp.	100.0, 10/10	100.0, 524/524	100.0, 10/10	100.0, 524/524
E. faecalis	94.7, 36/38	100.0, 110/110	100.0, 36/36	98.2, 110/112
E. faecium	80.5, 33/41	100.0, 107/107	100.0, 33/33	93.0, 107/115
E. gallinarum	100.0, 3/3	98.6, 143/145	60.0, 3/5	100.0, 143/143
Enterococcus spp.	96.3, 79/82	100.0, 66/66	100.0, 79/79	95.7, 66/69
S. agalactiae	80.0, 4/5	100.0, 143/143	100.0, 4/4	99.3, 143/144
S. pneumoniae	87.5, 14/16	100.0, 132/132	100.0, 14/14	98.5, 132/134
S. pyogenes	100.0, 3/3	99.3, 144/145	75.0, 3/4	100.0, 144/144
Streptococcus spp.	98.4, 62/63	96.5, 82/85	95.4, 62/65	98.8, 82/83
Acinetobacter spp.	100.0, 9/9	100.0, 243/243	100.0, 9/9	100.0, 243/243
Bacteroides spp.	28.6, 2/7	100.0, 245/245	100.0, 2/2	98.0, 245/250
Bacteroides spp./Prevotella spp.	57.1, 4/7	100.0, 245/245	100.0, 4/4	98.8, 245/248
Enterobacteriaceae	98.0, 199/203	100.0, 49/49	100.0, 199/199	92.5, 49/53
E. coli	96.0, 121/126	99.2, 125/126	99.2, 121/122	96.2, 125/130
Klebsiella pneumoniae	100.0, 27/27	98.2, 221/225	87.1, 27/31	100.0, 221/221
Pseudomonas aeruginosa	90.0, 27/30	100.0, 222/222	100.0, 27/27	98.7, 222/225
Salmonella spp.	100.0, 6/6	100.0, 246/246	100.0, 6/6	100.0, 246/246
Stenotrophomonas maltophilia	66.7, 2/3	100.0, 249/249	100.0, 2/2	99.6, 249/250