Table 3.
Antimicrobial susceptibility of S. aureus isolates
N tested=number of isolates tested for any given antibiotic. Results are expressed as the percentage of tested isolates that are non-susceptible (% Intermediate + % Resistance, %I+R). ERY, erythromycin; CL, clindamycin; GEN, gentamicin; SXT, trimethoprim-sulfamethoxazole; RIF, rifampin; CIP, ciprofloxacin; LVX, levofloxacin; MNO, minocycline.
|
Antibiotic |
MRSA, n=182 |
MSSA, n=261 |
P-value |
MRSA-HA n=78 |
MRSA-CA, n=96 |
P-value |
MSSA-HA, n=126 |
MSSA-CA, n=123 |
P-value |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
N tested |
N (%I+R) |
N tested |
N (%I+R) |
N tested |
N (%I+R) |
N tested |
N (%I+R) |
N tested |
N (%I+R) |
N tested |
N (%I+R) |
N tested |
N (%I+R) |
||||
|
ERY |
441 |
131 (29.7 %) |
180 |
54 (30 %) |
261 |
77 (29.5 %) |
0.91 |
78 |
36 (46.2 %) |
94 |
16 (17.0 %) |
5.10E-05 |
126 |
34 (27.0 %) |
123 |
37 (30.0 %) |
0.67 |
|
CLI |
443 |
119 (26.9 %) |
182 |
43 (23.6 %) |
261 |
76 (29.1 %) |
0.23 |
78 |
30 (38.5 %) |
96 |
12 (12.5 %) |
8.11E-05 |
126 |
34 (27.0 %) |
123 |
36 (29.3 %) |
0.77 |
|
GEN |
431 |
69 (16.0 %) |
178 |
49 (27.5 %) |
253 |
20 (7.9 %) |
9.13E-08 |
77 |
26 (33.8 %) |
93 |
23 (24.7 %) |
0.23 |
122 |
9 (7.4 %) |
119 |
9 (7.6 %) |
1 |
|
SXT |
437 |
5 (1.1 %) |
179 |
5 (2.8 %) |
258 |
0 (0.0 %) |
0.01 |
78 |
4 (5.1 %) |
93 |
1 (1.1 %) |
0.17 |
124 |
0 (0.0 %) |
122 |
0 (0.0 %) |
1 |
|
RIF |
428 |
11 (2.6 %) |
172 |
9 (5.2 %) |
256 |
2(0.8 %) |
0.008 |
77 |
5 (6.5 %) |
87 |
4 (4.6 %) |
0.73 |
124 |
1 (0.8 %) |
120 |
1 (0.8 %) |
1 |
|
CIP |
383 |
46 (12.0 %) |
158 |
29 (18.4 %) |
225 |
17 (7.5 %) |
0.002 |
68 |
19 (27.9 %) |
88 |
10 (11.4 %) |
0.012 |
113 |
6 (5.3 %) |
106 |
11 (10.3 %) |
0.2 |
|
LVX |
330 |
28 (8.5 %) |
131 |
23 (17.5 %) |
199 |
5 (2.5 %) |
2.38E-06 |
60 |
13 (21.7 %) |
64 |
7 (10.9 %) |
0.14 |
94 |
2 (2.1 %) |
94 |
3 (3.2 %) |
1 |
|
MNO |
364 |
2 (0.5 %) |
145 |
1 (0.7 %) |
219 |
1 (0.4 %) |
1 |
67 |
1 (1.5 %) |
76 |
0 (0.0 %) |
0.46 |
112 |
1 (0.9 %) |
101 |
0 (0.0 %) |
1 |