Table 2.

Descriptive Statistics of minimal inhibitory concentrations (MICs) (µg/ ml) for bacterial keratitis & endophthalmitis Isolates to 5 selected antibiotics

Antibiotic	n	Med.	Mode	MIC50	Min. MIC	Max. MIC	% S	% IS	% R
					Methicillin Resistant Coagulase-Negative Staphylococcus
Imipenem	17	0.38	0.064	0.38	0.032	4.0	100	0	0
Moxifloxacin	17	0.094	0.094	1.0	0.094	8.0	47.1	23.5	29.4
Gatifloxacin	17	0.125	0.125	1.5	0.094	8.0	41.2	11.8	47.1
Linezolid	17	2.0	2.0	2.0	0.75	4.0	100	0	0
Tigecycline	17	0.125	0.125	0.25	0.047	4.0	88.2	0	11.8
					Pseudomonas aeruginosa
Imipenem	6	3	4	3	1.5	4	66.7	33.3	0
Moxifloxacin	6	3	4	4	1.5	>32	nd	nd	nd
Gatifloxacin	6	2	4	2	0.75	>32	50	33.3	16.7
Linezolid	6	>256	>256	>256	>256	>256	0	0	100
Tigecycline	6	>256	>256	>256	>256	>256	0	0	100
					Coagulase-Negative Staphylococcus
Imipenem	5	0.064	0.064	0.06	0.012	0.125	100	0	0
Moxifloxacin	5	0.094	0.125	0.09	0.032	0.125	100	0	0
Gatifloxacin	5	0.064	0.064	0.125	0.064	0.25	100	0	0
Linezolid	5	4	4	2	0.15	4	100	0	0
Tigecycline	5	0.064	N/A	0.094	0.032	1	80	0	20
					Methicillin resistant Staphylococcus Aureus
Imipenem	4	0.127	0.064	0.19	0.064	0.5	100	0	0
Moxifloxacin	4	0.139	0.047	0.23	0.047	0.25	100	0	0
Gatifloxacin	4	0.253	0.38	0.38	0.125	0.38	100	0	0
Linezolid	4	1.75	1.5	2	1.5	4	100	0	0
Tigecycline	4	0.25	0.25	0.25	0.19	0.75	80	0	20
					Alpha hemolytic Streptococcus
Imipenem	3	3	3	3.0	0.064	3.0	33.3	0	66.6
Moxifloxacin	3	0.25	N/A	0.25	0.016	0.75	nd	nd	nd
Gatifloxacin	3	0.38	N/A	0.38	0.125	1.5	100	0	0
Linezolid	3	1.25	N/A	1.25	0.5	>256	66.6	0	33.3
Tigecycline	3	0.064	0.064	0.064	0.064	0.38	66.6	0	33.3
					Bacillus Cereus
Imipenem	3	0.094	N/A	0.094	0.047	0.125	nd	nd	nd
Moxifloxacin	3	0.125	N/A	0.125	0.064	0.19	nd	nd	nd
Gatifloxacin	3	0.125	N/A	0.125	0.064	0.19	nd	nd	nd
Linezolid	3	3	N/A	3	1	4	nd	nd	nd
Tigecycline	3	0.125	N/A	0.125	0.047	0.75	nd	nd	nd