Table 3 MIC geometric mean, MIC₅₀, MIC₉₀ and rate of tolerance (macromethod)

Mean MIC (mg/l) (range)

MIC ₅₀ (mg/l)

MIC ₉₀ (mg/l)

N.tolerant (%)

Mean MIC (mg/l) (range)

MIC ₅₀ (mg/l)

MIC ₉₀ (mg/l)

N. tolerant (%)

Mean MIC (mg/l) (range)

MIC ₅₀ (mg/l)

MIC ₉₀ (mg/l)

N. tolerant (%)

MSSA N.49 (79%)

0.52 (0.25-1)

0.35

0.48

31/49 (63.2%)

1.69 (1-2)

1.1

1.7

9/49 (18.4%)

1.39 (1-2)

0.9

1.7

30/49 (61.2%)

MRSA N.13 (21%)

NA

NA

NA

NA

2.3 (2-4)

1.5

2.5

4/13 (30.8%)

2.1 (1-4)

1.3

2.5

10/13 (76.9%)